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Nolan: In the era of artificial intelligence, human beings have once again ushered in the "Oppenheimer" moment.

Recently, Nature magazine had an exclusive interview with three scientific consultants of the film Oppenheimer, and deeply discussed the cooperation experience between Nolan and them during the filming process.

Director Nolan believes that in the current AI era, human beings are facing challenges similar to those of Oppenheimer. He stressed that those who master the development direction of AI technology need to shoulder their responsibilities bravely like Oppenheimer. He also believes that at this critical moment, we should not only pay attention to the rapid development of AI technology, but also pay attention to the potential risks it may bring.

Nolan said that during the first nuclear test in history, people were afraid of the out-of-control chain reaction caused by nuclear fission, fearing that it would destroy the whole planet. Now, with the rapid development of AI technology, famous AI researchers including Hinton and technology giant Musk are beginning to worry that AI technology may bring irreversible harm to human civilization.

In an interview with Wired magazine, Nolan talked about the potential threat of AI. He said that this problem has actually existed for some time, but it has not attracted enough attention. Over the years, the development of artificial intelligence in weapon system and its problems have become very obvious, but only a few journalists have reported it. Only recently, with the appearance of a chat robot that can write for local newspapers, this problem was suddenly hyped into a crisis.

Director Nolan believes that we need to face up to the challenges brought by AI technology and seek reasonable solutions. He called on people from all walks of life to pay close attention to this issue in order to protect the development of human civilization in the AI era.

Sichuan famous dish Bangbangji is a delicious dish made with a stick.

  □ Yike text/map

  Bangbangji, a dish that makes people’s index fingers move. Hanyang, an ancient town with lingering charm. Now, whether it is "Shancheng Bangbangji", "Chengdu Bangbangji" or "Leshan Bangbangji", it will be indicated that this dish originated in Hanyang Town on the Minjiang River in Qingshen County a hundred years ago.

  Standing a hundred years later, we reread history and feel a kind of historical chance and coincidence. Hanyang is to Bangbangji or Bangbangji is to Hanyang, and the relationship between them has long been inseparable.

  one

  Sichuan cuisine "Bangbangji"

  Named after the stick hitting the food.

  When it comes to "bangbangji", many people know that it is one of the eight major cuisines in China — — A century-old famous dish in Sichuan cuisine. However, little is known about how "stick" and "chicken", two seemingly unrelated things, are related.

  Looking through the historical materials, it is not difficult to know that before the appearance of bangbangji, there was a precedent in the cooking history of China to link bangbangji with food.

  As early as more than 1,400 years ago, an agronomist named Jia Sixie wrote a famous book. In this comprehensive agricultural book named Qi Min Yao Shu, a delicious food made of wooden sticks was recorded in detail — — White breast. The method of preserved white meat is to choose lean meat of cattle, sheep, roe deer, not fat, cut it into pieces, soak it in cold water until the blood is clear, then put salt water and pepper powder into water to soak the meat, soak it for two nights and take it out to dry. When the meat is half dry and half wet, gently hit it with a wooden stick to make the meat firm.

  As for the practice of "white breast", until the Tang Dynasty, some people relayed Jia Sixie’s records word for word when writing books. Today, this once-popular snack "Bai Fu" has faded out of people’s taste in the years, but its practice of hitting food with a stick always makes people involuntarily think of the delicious food that followed, which is also related to sticks — — "great chicken"

  How did the great chicken get its name? Is it the same as white preserved fruit, which needs to hit the food gently with a stick before it is cooked, so it has something to do with "stick"? If both of them use the workflow of beating the food with a stick before cooking, then is it the same as the intention of white breast to make the meat firm?

  At present, Shancheng Bangbangji, Leshan Bangbangji and Chengdu Bangbangji … … Many bangbangji with local names have sprung up like mushrooms after rain. Where is the birthplace of bangbangji? What is the reason for this place’s great chicken to be famous?

  2

  This dish originated from the green god Hanyang.

  A small town thriving on water.

  In many books on Sichuan cuisine, whenever we mention "Shancheng Bangbangji", "Chengdu Bangbangji" or "Leshan Bangbangji", it will be noted that this dish originated from Hanyang Town on the Minjiang River in Qingshen County before the Ming and Qing Dynasties. As for why Bangbangji originated in a little-known town and why it became famous, there is no historical data to explain it exactly.

  Out of Qingshen County, walk south along the Minjiang River. After about 20 kilometers, the river gradually narrows, and a small town with a rich and quaint style appears in front of you. As far as you can see, it is full of gray tiles and old closed wooden houses. Perhaps it is because the weather is too cold, there are few pedestrians on the road, and the town is a little lonely and depressed.

  When I got off the bus and walked a few steps forward, I saw three or five elderly people in a teahouse by the road, and I vaguely heard a catchy folk proverb — — "Poor green spirit, rich Hanyang, want to play a Liujiachang … …” As far as the first six words are concerned, a series of questions inevitably come to mind: why does a small town want to be richer than the county? Why does it have such amazing confidence and pressure on Qingshen County? It turned out that this Hanyang town was originally an arc-shaped flat dam along the Minjiang River, and later it became a market town because of water, and it was beautiful for a long time in history because of a Millennium water pier in the town.

  In the era of "it is difficult to get through the Shu Road, and it is difficult to get into the sky", the land traffic in Sichuan is blocked, and the Minjiang River waterway has naturally become an important mode of transportation to travel inside and outside Sichuan. When the merchant ships traveling between Chengdu and Leshan arrive at Pingba, they just catch up with the dusk and the night. In addition, Pingba has to pass through a steep gorge area of 3 kilometers to the south of Leshan. The walls in the gorge are towering, the rocks are numerous, and the rivers are circuitous. All merchant ships are shocked by its mystery. Pingba has an open terrain, which is convenient for boats to dock. It just caters to the needs of merchants and ships wandering on the Minjiang River water shipping line to find a place to rest and relieve the fatigue and burnout of a day’s travel.

  Day after day, year after year, merchants’ ships docked at Pingba, which turned the ordinary Pingba into an important transit point on the waterway transportation trunk line between Chengdu and Leshan, and gradually evolved into a cargo distribution center for waterway transportation between Chengdu and Leshan. Shuttle boat Ge, raising sails and lowering sails, raising oars and collecting oars, people come and go, bustling, really lively.

  By the Han Dynasty, Pingba had its own name. A family named Yiyang opened a shop in the dock near the river. Since then, the family’s business has flourished and the population has been strong, gradually forming a market town. Pingba became a market town because of the Yang surname in Han Dynasty, so it was slowly called Hanyang Town.

  In the story of the old people, Hanyang is prosperous and rich. It is not difficult to see that in the impression of the older generation, Hanyang is not only a small town, but also a land of wealth.

  three

  Eating peanuts grows up and tastes delicious.

  Hanyang chicken is as famous as "Yayu"

  The old people said that Hanyang was born of water, and everything in Hanyang was born of water. There are three local products in Hanyang, which can be summarized by two folk proverbs — — "Hanyang peanuts Hanyang chicken, Hanyang Jiangtuan flies."

  Hanyang is the export of Pingqiang Small Three Gorges, which is known as the "fish nest" and the hometown of Jiangtuan, a rare species. Jiangtuan is a good fish with tender meat and delicious taste. It is a pity that the Jiangtuan is becoming increasingly rare and endangered, and the scene of Jiangtuan being exported by air has long since disappeared.

  However, Hanyang peanuts and Hanyang chickens have always been there. Hanyang is a delta region formed by the alluvial of Minjiang River, with soft soil, which is most suitable for planting peanuts. Peanuts planted in Hanyang Town are not only large in size, high in yield, but also delicious. When harvesting peanuts, there are always some residual peanuts scattered in the soil, and worms will grow after a period of time. At this time, Hanyang people always put their chickens into the ground and peck at peanuts and insects in the soil. Hanyang chicken is open in the wild, eating fresh peanuts, etc., and it is more shiny and bright, and its meat is more delicious. It is also this unique feeding method that makes Hanyang Chicken quite famous, thus leaving the good name of "Hanyang Chicken with Jia Rotten Yayu".

  The raw materials used in Bangbangji are carefully selected from these Hanyang chickens. In a restaurant featuring bangbangji in Hanyang Town, juniper and cypress are slowly cleaning the tools for making bangbangji in the kitchen. As early as the forties and fifties of last century, his grandmother had been cooking a great chicken in the town, and she had been familiar with it since she was a child.

  Juniper said that the most critical link in making a great chicken is to choose the ingredients. The meat of Hanyang chicken is tender and plump, which is the main reason why Hanyang bangbang chicken is the most popular. Among the many Hanyang chickens, the local cock over seven or eight months old is the best raw material.

  The production method of bangbangji is very particular and has no skill. Slaughter the rooster, remove its hair, viscera and wash it. Wrap the legs and wings with hemp rope, punch holes with bamboo sticks where the meat is thick, put it in a boiling water pot and cook it slowly for a quarter of an hour with slow fire, and add half a scoop of cold water. When the water boils again, turn the chicken over and cook for about 10 minutes, then add half a scoop of cold water. When the water is boiled, turn it over, pierce the chicken with a small bamboo thorn, pick it up when there are no blood beads, soak it in cold boiled water for 1 hour, and take it out to dry. Slaughter the head of the chicken, neck, wings, chest and back in different parts, cut the head of the chicken into two pieces, and gently tap the back of the knife with a special wooden stick to cut the rest. When eating, mix red pepper, sesame powder, pepper powder, sesame oil, Tricholoma, soy sauce, sugar, chopped green onion, monosodium glutamate, etc. into juice, and then dip it in.

  It is Hanyang Bangbangji, a special dish, that attracts tourists from both inside and outside the province. Most of them come from Chengdu, Leshan, Ya ‘an and other surrounding areas, but many of them come from Beijing and even foreign countries.

  four

  Chicken sold at the water pier

  Eating with relish and leaving with love.

  "Bangbang" and "Chicken" seem to have nothing to do with each other, but they are closely linked because of the cooking technology of this delicious food. So, for what purpose, do you have to beat chicken with a stick? How is it different from the practice of beating the white breast with a stick?

  Lei Guangqian, director of the Party and Government Office of Hanyang Town, explained the ins and outs of Hanyang Bangbang Chicken.

  As early as when the land traffic was underdeveloped, the traffic in Sichuan mainly depended on water transportation, and Minjiang River was an important waterway in Sichuan. From Chengdu to Leshan, Hanyang Town has always been an important transit point. Every day, ships come and go in an endless stream, and boatmen and pedestrians are bustling. Because of the large flow of people, there are some people with more economic minds who have set up a way in Hanyang’s water wharf — — Selling snacks to passing ships and pedestrians.

  What are you selling? Of course, it is a local specialty of Hanyang, and the cost is low. As a result, vendors began to sell chicken to ships, and each person could sell several chickens every day. Chicken is slaughtered into small pieces and put in a bowl. The bowl is filled with seasoning juice and soaked with chicken. Every time a guest eats a piece, a piece is recorded. After eating, the money is calculated according to the number of pieces of chicken eaten. Since the price is calculated by the block, it is necessary for vendors to cut the chicken evenly. In order to cut the chicken pieces evenly, the vendors came up with a way, that is, aim the knife edge at the chicken body position, and then hit the back of the knife with a special stick. Later, Hanyang chicken nuggets were also called "great chicken".

  For those pedestrians who are tired of traveling by boat, Hanyang chicken, which grew up eating peanuts on Hanyang Dam, is tender and delicious, and it is spicy and spicy, so they all love it and leave it. However, things born of water, without water, are doomed to be unsustainable. After the completion of the highway from Chengdu to Leshan, the water shipping in Chengle gradually became depressed, and the reputation of Hanyang as a "great chicken" gradually cooled down.

  Today, in Chengdu, Leshan, Chongqing and other places, Bangbangji presents a prosperous scene of "blowing open the petals of ten thousand pear trees". In order to make it taste better, caterers constantly transform it, and the pricing method is no longer priced by pieces, but by the number of shredded chicken. It is no longer necessary to beat the back of the knife with a stick and cut it into pieces, but there are still some restaurants that, in pursuit of the unique taste of hand-torn chicken, pat the chicken loose with a wooden stick after cooking it. Although this beating has changed the original way, it is still called "stick chicken".

The same Spring Festival travel rush sticks to different railway love stories.

  Cctv news(Reporter Wang Jiazhu) A few days ago, the story of an ordinary railway couple touched hundreds of millions of viewers after a news short film "Meet at 0: 37" was broadcast.

  In addition to drivers and flight attendants, there are other railway couples with different types of work who stick to the front line in Spring Festival travel rush all the year round. Their love has distinctive railway characteristics, simple and unpretentious, but they have their own moving "little secrets".

  Love "password" hidden in big data

  Tan Fang and Yang Wei are a railway couple of Xi ‘an Bureau Group Company. One of them is responsible for using big data to monitor and analyze the safety of motor trains, and the other is to repair and maintain the equipment according to big data analysis to deal with hidden problems. Big data is their love "password".

Yang Wei and Tan Fang (Photo courtesy of Baoji South Station)

Yang Wei and Tan Fang (Photo courtesy of Baoji South Station)

  The work area where Tan Fang, his wife, works is responsible for analyzing and monitoring the safety data of bullet trains in Baolan and Xibao high-speed railways. Every day, he monitors and analyzes the running status of more than 80 pairs of bullet trains, monitors and processes more than 2,000 pieces of information, and conducts round-the-clock operation, providing all-weather protection for bullet train safety.

  Husband Yang Wei is in Yangling South Work Area of Xibao High-speed Railway, responsible for the maintenance of line equipment. Every night when she goes to work, Yang Wei pays special attention to the telephone ringing, because as long as Tan Fang is on duty, she will definitely call him to tell him about the equipment monitoring information and data of Yangling South Station that day. Tan Fang pays attention to reading the status data of signal equipment in Yanglingnan signal work area where Yang Wei is located when he goes to work every day. When the alarm information and data are found to be out of limit, she will inform her husband, Yang Wei, who is on the front line for inspection at the first time.

  Sometimes, it will happen that the data analysis is inaccurate through on-site inspection, and the two often have disputes. Yang Wei has a long maintenance time and much experience in the field, and wins more and loses less in the argument, but Tan Fang will also be adamant and ask Yang Wei to conduct on-site investigations many times to make sure that there is no problem before canceling the number.

  Tan Fang said with a smile: "Although we rarely meet, we can feel what the other person is thinking on the phone. If Yang Wei doesn’t check according to the doubts I found, it means that he didn’t take my words seriously." This kind of argument tests the sense of responsibility at work and their love. The "big data" of the train has thus become the "password" of love between them.

  Support each other in the maintenance workshop

  Feng Wei and Yang Fang are a railway couple. They are both employees in the workshop of Ankang Depot of China Railway Xi ‘an Bureau Group Company. They drive their private cars to and from work together, have breakfast together in the unit canteen, and often stay together at work, which can be described as inseparable.

Yang Fang climbed the car body more than 3 meters high to check the fault point (picture provided by Ankang Depot of Xi 'an Bureau Group Company).

Yang Fang climbed the car body more than 3 meters high to check the fault point (picture provided by Ankang Depot of Xi ‘an Bureau Group Company).

  Feng Wei is the foreman of the car repair team, and Yang Fang is the information officer of the comprehensive team. In Spring Festival travel rush, the number of vehicles that have been detained and repaired has obviously increased. In Yang Fang, information such as scheduled inspection, bogies, couplers and brake model numbers are copied one by one, and then entered into the system one by one to ensure that the information of "one vehicle and one gear" is complete and accurate. This seemingly simple work inputs more than 3,000 pieces of data and information every day, and no mistakes are allowed.

  "Don’t be sloppy, check it again carefully on the way back." During the work break, Feng Wei blew his wife "one ear and one ear" from time to time.

  Yang Fang also undertakes the task of pre-inspection of temporary repair vehicles, and needs to find out all vehicle faults like "mine clearance" to provide basis for workshop production. When the car body swells and the floor is damaged, and it is impossible to accurately judge the fault under the car, she will grab the handrail at the end of the car and climb the car body more than 3 meters high, so as to identify it carefully like Spider-Man. "It’s too high. When I first started working, my legs were weak … … Later, Feng Wei encouraged me to say don’t look under the car, just look at the fault point, so I’m not afraid! " Yang Fang said.

Feng Wei is organizing the unloading operation.

Feng Wei is organizing the unloading operation.

  In 2015, Feng Wei participated in the technical competition of brake fitter in the head office and got stuck in the recitation of theoretical questions. Yang Fang worried, accompanied Feng Wei to review and consolidate again and again before going to bed at night, opened his eyes in the morning, and began to ask questions to help Feng Wei strengthen his memory. In the end, Feng Wei won the honorary title of "Young Post Technical Expert" of the head office. "This grand prize really lost my wife!" Feng Wei said.

  Whether in life or at work, the young couple in ordinary posts are always together, supporting each other. Feng Wei said that he would go with Yang Fang like this all his life.

National Table Tennis "Amateur King" Finals in Chengdu

  Xinhua News Agency, Chengdu, February 26th (Reporter Chen Di) On the 26th, the 2022 "Li Ning Double Happiness Cup" national table tennis "Amateur King" finals and "Tibet Pharmaceutical" national amateur table tennis championship ended in Chengdu.

  In this competition, nearly 600 athletes from 28 provinces, autonomous regions and municipalities participated. The 4-day competition consisted of men’s and women’s singles, men’s and women’s groups and special guests.

  At the closing ceremony of the day, the Tibet Table Tennis Association presented Hada to many guests, thanking the China Table Tennis Association and the organizers for their efforts in the cause of table tennis in Tibet. Cang Mla, secretary of the Party branch of the Tibet Table Tennis Association, said that in recent years, the number of table tennis fans in Tibet has increased day by day, and it was only after coming to the competition that there was a certain gap. "After returning, we will find the right direction to study hard, continue to promote table tennis and popularize national fitness." Cangmla said.

Badminton footwork caught in one net (multiple pictures)

1, how to start

This is the most important step in badminton.

I’m here to prepare. I don’t know where the ball will go before the opponent hits the ball.

After my opponent hits the ball, I have to react in a short time.

Therefore, I must take a step to push my body to the ball as soon as possible.

With Figure 01, the first step is "starting step"

Second, how to stop

The second element of badminton pace is how to stop.

Stop, including two parts:

First, the toes should point to the ball.

In this way, you can have a stable posture and good balance.

Photo 02 Toe points to the ball.

But many people point their toes there (the midline), which is very dangerous

When your toes point to the ball, your knees can bear the weight of your body.

You can’t do this (toes pointing to the sideline), it will be worse.

Remember, your toes must point to the ball.

The second is how to get close to the ball.

You should keep an eye on your opponent when you are close to the ball.

Pay attention to the direction of my face so that I can have a better view.

Therefore, my approach to the ball should be like this.

Figure 03 The action of approaching the ball

Don’t just watch the ball, watch the opponent’s court at the same time.

Point your toes at the incoming ball, and look at your opponent’s court, not in other directions.

Third, how to return?

For example, after I hit the ball in the frontcourt, how can I return to my position and prepare for the next shot?

1. The first step of return

Photo 04 Return to the First Step

Hit the ball and get ready (with your feet back)

Hit the ball, get ready

Then come back slowly.

Photo 05 The frontcourt moves to the backcourt

Picture 06 Moving to the frontcourt is the same.

Picture 07 The same is true when moving to the side.

Photo 08 The same is true in front of the backhand net.

Without this first step of returning, it would be like this. My movement will die.

Photo 09 One-step return is wrong.

The important role of the first return step is to wait for the direction of the opponent’s ball.

Pay attention to the overall movement of the male student and focus on his legs.

After hitting the ball there, he didn’t know where his opponent’s next ball would go during the return.

Because of this, he must pause and pay attention to his overall movement rhythm.

Figure 10 The rhythm of returning to the net.

After hitting the ball, he immediately made the first step of returning, and then slowly returned.

2. The second step of return

After hitting the ball, he immediately made the first step of returning, and then slowly returned.

In the process of his return, when the opponent hits the ball, he can know where the ball is going and start it immediately.

As you can see, while he is slowly returning to his position, he is also waiting for the ball.

Photo 11 The second step of the female player slowly

If her opponent makes a fake move, if her return movement is done correctly, it is not easy to be cheated.

While she was still moving back in the air, she was also waiting for her opponent to hit the ball.

Let’s compare, if there is no first small step and a slow second step.

Figure 12: Slow second step can prevent cheating.

This small step will ensure that you keep moving.

The next move is a slower process to observe the opponent’s stroke.

This will ensure a good connection between the two shots.

Four, doubles before the net to save the ball footwork

The steps of throwing the ball in front of the net in doubles and mixed doubles can be divided into three steps:

Get ready, hit the ball, get ready;

Figure 13. Ball-saving footwork in front of doubles net

The key point here is the preparation after hitting the ball, and preparing the return ball in all directions.

The point is, get ready immediately after hitting the ball.

Fifth, the footwork of moving in front of the net in singles

If I put the net in front of the net, then I have to have the pace of returning.

Maybe four or five steps.

Take a look, in front of the forehand net

If the ball is far away, it is five steps.

If the ball is close, it is four steps.

Figure 14 Moving footwork in front of the net in singles

Photo 15 Female students hit the ball in front of forehand net

2. Hit the ball with backhand in front of the net

It can be four steps, and if it is a save, it is three steps.

Photo 16 Female students hit the ball in front of the backhand net

3. Forehand and backhand footwork

Pay attention to the pace of landing with both feet at the same time, which is the most important point.

Let’s do five forehand steps and four backhand steps on both sides

Pay attention to the timing of landing, just after the opponent hits the ball, not at the same time or in advance.

Figure 17 Forehand and Backhand Footwork

Six, doubles forehand net before picking the ball footwork

Key points to remember:

1. "Step One"

2. The pace of returning after picking the ball

3. Move before the next "first step" after returning to the middle.

Figure 18 Movement before "the first step"

Figure 19 Step 1

Figure 20 Footwork of Return

With Figure 21, pay attention to the "first step" to start moving.

Photo 22 The "first step" of the two men is simultaneous, just after the opponent hits the ball.

Figure 23 Footwork of Return

Seven, doubles backhand before the net to pick the ball footwork

According to the distance of the ball, it takes four or five steps to pick the ball in front of the backhand net.

Including starting, stopping and returning.

Photo 24: Picking the ball in front of the backhand net in doubles.

Eight, doubles forehand draw footwork.

There are five steps in forehand draw.

Photo 25 Footwork of Forehand Flat Draw in Doubles

⑴ Watching the ball: The first step is to start jumping.

⑵ Preparation: Step from left foot to right foot.

⑶ Hit the ball: Step out to the sideline with your right foot and hit the ball.

(4) Return: the first step of return.

5] Preparation: Double jump return.

Nine, the footwork of backhand flat draw in doubles

Figure 26 Footwork of backhand flat draw in doubles.

There are four steps in the backhand draw of doubles:

Watching the ball: the first step is to start jumping.

Hit the ball: hit the ball with your right foot on the ground.

Return: the first step of return

Ready: double jump return

Ten, doubles on both sides of the flat draw footwork.

Draw horizontally on both sides, one forehand step and four backhand steps.

The last step is also the "first step"

Figure 27: The footwork of flat draw on both sides of doubles

Eleven, the footwork of the single kill defense (right)

Take the kill step, five forehand steps and four backhand steps.

Sometimes, the backhand is three steps.

If the ball is close, you can use four steps.

If the ball is closer to the center of the field, you can use four steps.

Fig. 28 Footwork of Single Catch-and-Kill Defense (four steps on the right)

If the ball is far away, it takes five steps.

Photo 29 footwork of single-kill defense (five steps on the right)

Twelve, the footwork of the single-kill defense (left side)

If there is more time or the ball is close, use four steps.

When there is more time, almost 60% of the time is four steps.

Figure 30 footwork of single-player catch-and-kill defense (left four steps)

If there is not enough time, use three steps.

Sometimes you may be late. It takes three steps.

When the ball is close, four steps

Figure 31 footwork of single-player catch-kill defense (three steps on the left)

Thirteen, doubles defensive footwork (opponent’s net attack)

What is said here is the defensive footwork when the opponent saves the ball in front of the net.

Usually there are three steps: preparation, hitting the ball and preparation.

Photo 32 Catch the ball

Fourteen, the footwork of doubles catch defense (pick the high ball)

One look, two dozen, three times, four times, etc.

Photo 33 doubles catch and kill lob

When catching the lob, there are four steps because it is the backcourt ball and there is a certain time.

Look first, then hit the ball, then recover and return to the original position.

Then relax and wait for the next shot.

Photo 34 Catch, Kill and Pick the Golf

Fifteen, the footwork of the high ball (the first: basic footwork)

There are two kinds of high-ball paces in the backcourt.

Here is the first kind, the basic footwork.

There are seven steps. Let’s take a look:

Figure 35 footwork of high-distance ball (the first type: basic footwork)

One look, two aim, three lead, four strike, five look, six view, seven etc.

When the ball comes faster, the last seventh step is the "first step" of the next racket.

Starting from the "first step" and ending from the "first step", so that the next beat can be connected well.

16. Footwork of the high ball (the second type: advanced footwork)

When the opponent hits the backcourt flat and you take the initiative to fight back, then you have to change your footwork.

There are sideways movements and recovery footwork.

The step of recovery can make you return to China faster.

Fig. 36 Footwork of high-distance ball (second type: advanced footwork)

Seventeen, kill the ball footwork

There are basically six steps to kill the ball:

Photo 37 Ball Killing Footwork

When forehand kills the ball, sometimes there can be a slight recovery step.

Photo 38 Ball Killing Footwork

If you need a step to recover, this step must be fast.

If there is not enough time, don’t recover that small step.

After killing the ball, if you need a small step to recover, this step must be fast and small.

If time is not enough, don’t have this small step to recover.

Cassano: Football has developed, Mourinho is out of date, and Lu Kaku makes me feel sorry.

As an old general of Rome and Inter Milan, Cassano talked about the contest between the two former clubs in this round of Serie A, and finally the focus battle ended with the Nerazzurri winning 1-0 at home.

"Inter played a good game and they deserved to win the game. Thuram has scored nine goals and assists, and he started the season very strongly, which surprised me, of course in a positive way. Besides, I’m also happy for Aslani. He did well after coming off the bench. Varela also played a good game and he began to recover. Inter didn’t encounter any difficulties, only Sommer blocked Cristante’s great header once. Inter played well and they played in their comfort zone. This is Inter Milan, they have a strong team, have their own ideas and confidence, and they are the biggest favourites for the Serie A championship. Cassano said on Bobo TV, a live program in vieri.

"Mourinho Ideally, there is only one difference: if Eto ‘o, Milito and Sneijder are present, he will do more, but his first consideration is not to concede a goal, and then if you have strong players, you will score sooner or later. When I said he was not a good coach, I meant that Mourinho would not give you anything. When he has a champion player, he is excellent, and he will make you feel important. He is very strong in this respect, but today’s football is no longer like this. Football has developed, and strong teams no longer buy his tricks. Manchester United sent him away, Tottenham also sent him away, and Rome will send him away in the future. It is easy to coach a champion player. "

"Lu Kaku made me feel sorry for him: he was already in trouble, and everyone booed him in this game, but Inter fans didn’t need to boo him at all. Where did you expect Rome to play like that? Mourinho is very cunning, he changed the subject, and his communication style is suitable for those who follow him. None of the reporters asked him what he thought of the game and how he organized it. Why did you play so badly? Are you scared? People like Mourinho have a good life in Italy. Luck will end sooner or later, just like allegri. He won’t let the team pass the three-legged ball in a row. Only when the team he coached is strong can he win the championship. He has strong players in Porto and a super team in Inter Milan. He put two buses in front of the door when he played against Barcelona. Of course, that’s no problem. At home against Barcelona, he won the game by an offside goal and his opponent’s failure to blow a penalty, but his luck will end sooner or later. I don’t care that he took Rome to the finals twice. De Zerbi and Belsa may not have won the championship, but you will be excited when you see their teams. I’d rather not win, but play good football and make people happy. Mourinho is like this, I have said so for a long time. Inter gave him a dance music, but you didn’t even shoot straight through the goal. You just played for 0-0. What are you talking about? "

Faster and stronger! This marathon serves the runners attentively! Inspire the national sports enthusiasm!

At 7: 30 am on April 22nd, 2023, the "G60" Shanghai Sheshan Half Marathon started at Happy Valley in Shanghai, and 5,000 runners gathered in Songjiang from "the top of Shanghai" to "the root of Shanghai" to share the city’s elegant demeanor and experience the special services of the event, witnessing the rapid development of Songjiang.

This competition is technically certified by China Athletics Association, sponsored by Shanghai Songjiang District People’s Government and Shanghai Sports Federation, undertaken by Shanghai Songjiang District Sports Bureau and Shanghai Songjiang District Sports Federation, and operated and promoted by Nanjing Shanpao Sports Technology Co., Ltd.

After intense competition, SINTAYEHU DINKSA JENA from Ethiopia finally defeated her opponent in the final sprint and won the Sheshan Half Horse Men’s Team Championship with a score of 01:02:30. Ebesie Ayele Balcha from Ethiopia won the women’s championship in 01:09:47 and broke the competition record. Gemechu Gishe Bute and Aytoligne Kassaw Agegnehu won the runner-up and third place in the men’s team, while BIKILE TEFERI LETA and DEMSAH SAMRAWIT YIRGA won the runner-up and third place in the women’s team.

After years of intensive cultivation, the attention of the "G60" Shanghai Sheshan Half Marathon has gradually increased, and it has won the reputation of the contestants. In order to make the track smoother and help the players achieve PB, the organizing committee carefully adjusted the track route after repeated consideration. At the same time, in order to encourage faster and stronger sports competitive spirit, a record-breaking prize was set up to attract 200 elite athletes from China, Ethiopia, Oman and Kenya to compete on the same stage.

Finally, Ebesie Ayele Balcha from Ethiopia broke the women’s team competition record. Standing at a new starting point, the "G60" Shanghai Sheshan Half Marathon will continue to improve its professionalism in the spirit of Excellence, so as to bring more comfortable experience to the contestants.

Taking the city as the sound, the event described the origin and development of Shanghai culture, and took the "G60" Science and Technology Corridor as the axis to show Songjiang’s humanistic style.

The 21.0975km ecological track passes through Sheshan National Forest Park, Guangfulin Ruins Park, Guangfulin Country Park, Yuehu Sculpture Park, Chenshan Botanical Garden and other famous scenic spots in Songjiang, with wide and flat roads, full of green’s boulevard and youthful Songjiang University Town, which has aroused the sports enthusiasm of the whole people.

The runners in the track are dressed up and passionate, and the citizens on the track are full of cheers and enthusiasm. Every step is a landscape, and every step has expectations and surprises.

The organization, command and dispatch of this competition introduced the advanced "digital" intelligent management center, integrated technologies such as 5G and big data analysis, and coordinated the support system of the whole competition. Match site equipmentTwelveAn ambulance,SeventeenA medical station,sixA mobile medical point,FiftyAn AED,One hundred and sixty-fiveA medical staff,Sixty-fiveAn emergency worker,TwentyAn emergency runner walked with the players.One hundred and eighty-oneA track observer is distributed at the starting and finishing points and along the track, paying close attention to the physical condition of the players. Also set upeightA supply point, equipped withTwenty-twoThe famous official rabbit accompanied everyone to finish the race.TenAn eco-friendly runner picks up garbage to protect the track environment.
In terms of security, a total of investment was made on the day of the event.More than a thousand peopleSecurity personnel to ensure the safety and smoothness of the site and the surrounding area of the track.Nine hundred and thirty-twoA total of 100 volunteers from various universities in Songjiang University Town, with their full devotion and selfless dedication, ensured the smooth progress of the competition and showed the temperature of Songjiang in Shanghai to runners from all over the country.
The 2023“G60 "Shanghai Sheshan Half Marathon has come to a successful conclusion, but its warmth is still being passed on. The organizing committee of the competition joined hands with the project "Dandelion under the Blue Sky-Helping Students Hand in Hand" of Songjiang District Representative Office in Shanghai Charity Foundation to add a social responsibility to this run and complete the fundraising for 200 public welfare places. All public welfare funds will be used to help needy students.

In Songjiang, running a half-horse in Sheshan has become the most unforgettable exclusive memory in spring. The enthusiasm of on-site service, as well as the joy of challenging and surpassing self-harvest, made the contestants leave a good impression on Sheshan, Songjiang and Shanghai. This time next year, we will meet again.

In this competition, Zhao Guangsheng, a member of the party group of Shanghai Sports Bureau and a first-class inspector, Gu Jieyan, deputy head of Songjiang District People’s Government, Ho-bin Jeong, director of Shanghai Social Sports Management Center and Shanghai Sports Competition Management Center, Li Jiang, director of Shanghai Songjiang District Sports Bureau, Sui Wenjing, champion of figure skating pairs free skating competition in Beijing Winter Olympics, and other leaders and guests issued guns for the competition.

The Asian Cup is crazy again: Vietnam scored 11-0, the national football team broke the 9-year dilemma, and the sword refers to the World Youth Championship.

The Asian Cup is crazy again: Vietnam scored 11-0, the national football team broke the 9-year dilemma, and the sword refers to the World Youth Championship.

Text/Bin Shaokan Autumn (beginning) March, just as the Asian Football Championship started. The men’s soccer team participated in Uzbekistan U20 Asian Cup; It also brought many football festivals to Asian fans; A few days ago, the Asian Cup was crazy. First of all, Vietnam won two consecutive victories in the men’s soccer group match, beating Australia and Qatar. Unfortunately, they finally did it. Unfortunately, he was out again. Although he scored 6 points, he still couldn’t advance to the group stage.

In the first Asian Cup qualifiers of women’s football, the Australian women’s football team played crazy, beating Guam 13-0 and the China women’s football team beating the Filipino women’s football team 6-0; Another 11-0 victory hit the Singapore women’s football team hard. Although in the past, Vietnamese women’s football team was recognized as a weak team, with the development of Vietnamese football, their men’s and women’s football teams have risen a lot. In the future, they are bound to become the China team. Another new patient.

In terms of men’s soccer in China, in the group stage, 3 matches, 1 win, 1 draw, 1 loss and 4 points were accumulated. In the last round, thanks to the Japanese team’s victory over Saudi Arabia, the China men’s soccer team finally qualified in the group stage and reached the Asian Games. The top 8 in the youth competition, and that record also broke the dilemma of the youth national team for many years and returned to the top 8 seats after 9 years.

Judging from the overall process of the group stage, although the performance of China Men’s Football Team is remarkable, it does not have much advantage in the scene. Even against Kyrgyzstan, the weakest team in the group, the passport control organization of national youth players is completely at a disadvantage, and beating Saudi Arabia 2-0 is also a complete upset. In this game, the possession rate is as low as less than 30%. However, the game focuses on results. And then winning the bus is also commendable.

After the China men’s soccer team qualified, they also fell into an extreme situation. In other words, the South Korean team was the first to be criticized in the knockout. There are too many opportunities for men’s soccer in China. For China men’s soccer team, there is no way out. They can only fight hard to reach the top four, reach the top four of the Asian Youth Championship and win the World Cup. Tickets for the tournament, so the goal of China Men’s Football Team in this Asian Youth Championship is to beat the World Youth Championship with all one’s strength.

The cost of obtaining customers is rising year by year. How can intelligent marketing grasp business opportunities and maximize clues?

The decline of mobile internet traffic dividend is a market consensus, and it has entered the stage of stock game.

As a result, many marketing practitioners have found a problem:

The cost of obtaining customers for enterprises is getting higher and higher, even to the stage of doubling.

The cost of customer acquisition has become the "sword of Damocles" hanging over the heads of marketers.

Harvard Business Review has studied the value retained by users and found that 70% of companies agree that it is cheaper to retain existing users than to regain a user; The CAC (customer acquisition cost) of a new user is more than five times higher than that of keeping an old user; Increasing the user retention rate can increase the profit by 25%~125%.

So, since the acquisition cost of new users is so high, can we give up new users?

Obviously impossible. At present, everyone’s approach is to grasp both new customers and customer retention.

A fiery new way has emerged-refined operation.

Regarding refined operations, some people think that users are diverted from the APP side of products to WeChat official account and WeChat communities; Some people think that it is to send greeting messages to users of offline stores every holiday; Others believe that it is the automatic reach of thousands of people. Whether or not, these practices are the embodiment of refined operation, but not the whole picture.


Refined operation refers to the behavior of combining the data analysis of channels, user behavior and other dimensions with the development stage of the enterprise to carry out targeted operation activities for users in order to achieve operational objectives. This operation goal can be to gain more new users, improve the retention rate of users, improve the conversion rate of core business links, etc., and it is necessary to pay attention to the whole life cycle of customers.

Traditional marketing of enterprises often wastes a lot of resources on invalid customers, and the labor cost and time cost of acquiring customers are getting higher and higher. Now the era of extensive operation and volume marketing has passed, and it has been replaced by refined operation. Studying the life cycle of users is the complete development process from the beginning of contact with products/services to the end of leaving products/services, and implementing different marketing strategies for different stages.

Refined operation requires operators to pay attention to the whole life cycle of customers. The word customer lifecycle management is not unfamiliar to marketers, but there are not many enterprises that really do a good job in customer lifecycle management. There are many reasons, such as unclear division of stage strategies and scenarios, lagging human resources, high operating costs, etc., which may affect the effect of user life cycle management. However, with the development of artificial intelligence and big data technology, marketing has also begun to move towards intelligence and automation. A set of automatic marketing scheme put forward by Wofeng Technology is a good help for enterprises to solve this problem.


Overview of outbound robot application scenarios

On the one hand, the quality of non-advertising leads is uneven, it is difficult to identify the intended customers, and the industry competition is fierce; But on the other hand, advertising in online channels is often accompanied by high advertising costs. How to quickly reach and identify the obtained clues is a good way to ensure that the clues are not lost.

Wofeng technology outbound robot can batch high concurrent outbound calls and automatically complete pre-sales clue filtering. For missed customers, it can automatically call back and reach users efficiently. The outbound robot can intelligently identify customer intentions, automatically judge and mark customer intentions, and improve the efficiency of clue screening. AI algorithm intelligently extracts key information expressed by customers and generates customer portrait labels. Enterprises can conduct differentiated marketing according to the labels and provide decision optimization for operators.

Traditional manual communication and drainage methods are inefficient, ineffective and costly, and it is difficult to reach all customers. The customer label is not clear, and it is difficult to do hierarchical and refined operations.

Enterprises can use the customer database to launch intelligent group calls to public customers, screen high-intention customers to invite them to add, and quickly improve the pass rate of adding powder. Enterprise WeChat powder application is different from a micro-application, which will not appear on the regular "new friends" page, but will be displayed in the notification message of enterprise WeChat. Simply using active powder addition, users can easily ignore it, resulting in low powder addition rate. Combined with AI outbound, users can be informed of the specific entrance to apply through friends, thus improving the powder adding rate.

In the event marketing scenario, the online delivery cost is high, and it is impossible to accurately reach consumers point to point; SMS, Push and other methods are passive and have low opening rate.

1) Accurate customer identification and reach: distinguish registered customers, historical transactions and other customer types, generate customer portraits based on historical consumption information, customer registration information and outbound history, and identify core target customers to accurately push marketing activities.

2) Speech customization: preset multiple sets of standard speech according to common event marketing scenarios, and form a differentiated speech library in opening remarks, brand wake-up words and temptation points (gifts, discounts, coupons, etc.). Match the customer’s portrait accurately, and ensure the transformation effect.

When a customer initiates an order, but has not paid for a long time, or has paid the deposit, but has not paid the final payment, etc., the enterprise can use AI outbound to make a reminder, so that interested customers can pay quickly.

During the promotion period, under the gameplay of deposit inflation, users need to pay deposit+final payment, but the date of final payment is different; Enterprises can call for payment on each user’s last payment day, and attach a page link through SMS, which can greatly improve the efficiency of payment collection.

It is difficult to quantify the work of service personnel, and the efficiency of manual sampling and return visit and manual entry of results is low.

After the sale, the outbound robot can make outbound calls in batches with high concurrency, quickly complete the return visit task, conduct targeted marketing for customer problems in the return visit process, and automatically recall customers who are not connected, ensuring the reach rate and return visit effect. After the return visit, statistical analysis report and public opinion analysis results can be automatically generated according to the call records, which can assist business decision-making and provide reference for the next marketing of enterprises.

Wofeng technology outbound robot runs through the whole life cycle of users from five scenarios: clue screening, private domain drainage, activity notification, order reminder and after-sales service. For enterprises, outbound robots, as intelligent tools, help enterprises to operate, improve user retention rate, reduce costs, improve transformation, and continuously tap the growth value.

[Research Report] Deploying AI solutions in various industries

In recent years, enterprises have used artificial intelligence (AI) to solve the huge challenges they face. When the powerful AI platform is integrated with the existing workflow, it not only improves the business, but also realizes the transformation of the industry, from more accurate and rapid diagnosis of smart medical care to personalized customer experience in retail industry. Now, let’s explore the details behind the scenes.

Today, I share the "Deploying AI Solutions in Various Industries" released by Nvidia. Enterprises and organizations from all walks of life are integrating AI and strive to greatly improve the speed and efficiency of business operations. Using AI to gain a deeper understanding of business workflow, while improving customer experience and reducing operating costs are the keys to achieving breakthrough innovation. Accelerate the application of AI edge and give full play to the potential of enterprises.