"Ai Xuan, how did you walk down just now, and you walked so properly?" Li Jing saw that Du Qingyun was embarrassed by her question, so she hurriedly changed the topic, and at the same time blamed this little girl in her heart for being ignorant, she and Du Qingyun helped her just now, and now she is good, and she is helping in turn.

"Hehe, this-" Ai Xuan hung her appetite.

"Well, if you don't say it, we know it." Seeing that she wanted to hang her appetite, Du Qingyun hurriedly interrupted her words, and turned to Li Jing again, "Do you remember that you helped her count her steps?" ”

"Remember, 143 steps." Li Jing nodded.

"Well, the answer is here, the circumference of the white line circle is about 100 meters, the step of a normal person is 75 centimeters, the step of a girl is smaller, about 70 centimeters, 100 meters divided by 70, it is exactly 143 steps; The circumference of the circle is 360 degrees, 360 degrees divided by 143 equals 2.5 degrees, and she only needs to turn 2.5 degrees inward with each step. Du Qingyun explained.

"I see!" Li Jing nodded, admiring it in her heart, but she didn't expect that this could also be solved by mathematical methods, Nima, Xueba is really a Xueba.

"Ai Xuan, am I right?" Du Qingyun turned around again and asked Ai Xuan.

"Yes, you're absolutely right!" Ai Xuan replied angrily, she originally wanted to show off, but she didn't expect to be punctured by Du Qingyun all of a sudden.

"Is that anything else?" Du Qingyun asked.

"It's okay, you guys have a good relationship here, I don't want your big light bulb anymore!" Ai Xuan stomped on her after speaking, turned around and ran.

"Don't you have a big light bulb? It turned out that she had already seen that I was going to kiss Li Jing, so she deliberately ran out to make trouble! Du Qingyun suddenly understood in his heart.

"It turns out that she also likes Du Qingyun!" Li Jing also suddenly realized.

After Ai Xuan made such a fuss, the two lost the romantic feeling just now, so they had to return the same way.

When the two of them returned, they didn't notice that there was a person hidden behind the bushes next to them, this person was Cao Jie, and his eyes were full of anger.

In the evening, everyone drank happily, and everyone's body and mind were relaxed on this day.

The next morning, it was still a five-kilometer training, then washing, housekeeping, cleaning, breakfast, and then I was taken to the equipment training ground next to the playground.

On the left side of the equipment training ground is a psychological and behavioral training ground, which Du Qingyun has seen on TV, namely rock climbing, crossing broken bridges, high-altitude pontoon bridges, etc.

On the right is a 400-meter training ground for crossing Haiden Island, saying that it is 400 meters, in fact, it takes four round-trips, there are 1600 meters, each of which has different obstacles, the first 400 meters have iron pontoons, high and low beams, tire obstacles, transverse boards, etc., the second 400 meters have barbed wire, water logs, etc., the third 400 meters have deep pits, high-altitude obstacle nets, etc., and the fourth has long horizontal ladders, single-plank bridges, etc., Students need to have super physical strength and master the skills of passing various obstacles in order to successfully complete the task in the specified time.

"Today we are going to train the project of crossing Haiden Island, below I will explain to you the essentials of the action through each obstacle, first of all, the first iron pontoon, about 50 meters long, two meters high from the ground, it will have a large amplitude of shaking when we pass, it is very dangerous to fall, so it must be done in strict accordance with the action essentials, simply put, it is to squat, quickly, walk in the middle, squatting is the cat's waist, so that our center of gravity is moved down as much as possible, and the rapid passage can reduce the shaking, and most importantly, You have to step on the middle of the iron pontoon every time, so that you can ensure your balance and not fall off, understand? Tang Ren explained.

"Understood!" The crowd answered.

"Okay, let's watch my demonstration first." After Tang Ren finished speaking, he walked to the starting point, and then suddenly accelerated, rushed towards the iron pontoon, after rushing onto the iron pontoon, his hands were stretched out, his body sank, and he jumped forward quickly like an agile cat, although the pontoon swayed from time to time during his journey, but it did not affect him in the slightest, and after a while he rushed across the iron pontoon bridge and jumped to the ground.

Everyone was very impressed and couldn't help but applaud.

Next is the student on the field, first No. 1 Yue Qun, I don't know if he has a fear of heights or a fear of shaking, as soon as he got to the pontoon, his face turned pale with fright, and he shook his body after walking a few meters, and he was about to fall, but fortunately, he reacted quickly and immediately lay on the iron pontoon.

"No. 1, don't be afraid, get up, and pass quickly according to the essentials of the action I just said!" Tang Ren shouted loudly beside him.

"Instructor, I'm afraid!" Yue Qun replied in a trembling voice, lying tightly on the rickety pontoon, not daring to move.

Everyone laughed out loud.

"Then you jump down." Tang Ren said.

"Instructor, I'm still afraid!" Yue Qun didn't dare to jump.

"......" Tang Ren didn't know what to say.

After the iron pontoon bridge shook less violently, Yue Qun finally moved, but instead of standing up and walking, he walked on all fours on the bridge, slowly got up like a turtle, climbed for a while, and after the iron pontoon shook badly, he stopped and waited for the iron pontoon to stabilize before continuing to climb, just like that, the 50-meter iron pontoon bridge climbed for nearly ten minutes before climbing, and everyone leaned forward and backwards with laughter.

After Tang Ren waited for him to come down, he was also a little crying and laughing, but he didn't expect the first student to perform so badly.

"Two, you go." Tang Ren continued to preside over the training.

Liu Sheng stood at the starting point, took a deep breath, and after hearing Tang Ren's command to "start", he also rushed onto the iron pontoon bridge quickly like Tang Ren, and after arriving at the iron pontoon bridge, according to the essentials of the action, he stretched out his arms, formed a zigzag route, and quickly rushed forward.

Just when Liu Sheng was about to reach the finish line, his left foot accidentally deviated a little to the left, which made the shaking of the iron pontoon increase sharply, and Liu Sheng couldn't control his balance and flew out to the left.

Tang Ren seemed to expect Liu Sheng to fall, and while everyone screamed, he had already rushed to the place where Liu Sheng fell, and caught him with open arms.

However, because Liu Sheng's speed was very fast and he fell from a high place, he had a lot of momentum, and even Tang Ren and the two of them rolled to the ground.

Fortunately, the training ground for crossing Hayden Island was built on sand, and the two rolled around twice, except for looking a little embarrassed, it was not a big deal.

Immediately the crowd gathered around.

"Are you alright?" Tang Ren helped Liu Sheng up and asked.

"It's okay, it's just that my feet hurt badly!" Liu Shengqiang endured the pain in his left foot and replied.

"Well, don't move, I'll see!" After Tang Ren finished speaking, he asked the two of them to help Liu Sheng, took off his shoes, and found that a large lump of black blue had been swollen at the ankle.

Tang Ren gently pinched the black green area with his hand and said that it was nothing, but it was dislocated.

"Oh." Liu Sheng breathed a sigh of relief.

"Look, planes!" Tang Ren suddenly pointed to the sky with his finger.

Everyone, including Liu Sheng, looked in the direction of his finger, where was the plane?

Just when everyone looked up at the sky, Tang Ren held Liu Sheng's dislocated foot with both hands, and suddenly pulled it hard, and a "click" sounded.

A miserable scream of "ah" immediately came from Liu Sheng's mouth.