When she was in elementary school, Lao Lin also compiled such a book for her.

Of course, compared with this book, the "Mental Arithmetic King" secret book in elementary school is much simpler. It is simply the work of Lao Lin. But this book... this book is simply the culmination of his masterpiece.

Lin Chaoxi inexplicably thought of a term in criminology, called the "broken windows theory", which means that if someone breaks a window and this window is not repaired in time, others may be condoned by some kind of exemplary behavior and break more windows.

The situation with this book is very similar.

Generally speaking, everyone takes good care of library books and does not make any marks on them.

Someone must have written comments on this book that was scribbled on first. The second person who borrowed the book saw it and started to scribble on it as well. The students who borrowed the book next time were even more unscrupulous, just like the barrage that followed.

She had every reason to suspect that the first person to write was Lao Lin. After all, only Comrade Lao Lin could be so unscrupulous in his nature.

But according to common sense, if a book is too "stained" or seriously damaged, it may be removed from the bookshelf. The fact that it is still on the bookshelf shows that the librarian must have turned a blind eye when collecting the book.

The students who came one after another, the tolerant librarian, and the first student who wrote down his or her opinion...

Lin Chaoxi scanned the entire bookshelf in front of him, opened the book list again, and looked at the next dozen or so titles. He inexplicably felt that there must be some very interesting stories here.

She and Pei Zhi looked at each other and started looking for the next book at the same time.

But at this moment, they heard the sound of anxious footsteps behind them.

Comrade Lao Lu's anxious voice, which he deliberately suppressed, rang out: "Everyone has left. What are you doing? Hurry up and catch up."

At the exit of the reading room, all the members of the training team were waiting for them, looking a little impatient.

The leader waved to them. Lin Chaoxi put the list of books back into his pocket, picked up the first book he found, and followed.

——

"Lin Chaoxi, this is your first time here and you're borrowing books? You're really hardworking."

Standing in front of the borrowing desk, Lin Chaoxi handed out a card. Most of the team had already moved forward, but Chen Chu fell behind and looked at her and smiled.

Chen Chu's "back door" was open to the end. Just like how annoying he was, Lin Chaoxi was too lazy to answer. A "beep" sounded, and the library staff returned the book. Chen Chu asked again: "Can I see what you borrowed?"

"No." Lin Zhaoxi said.

Chen Chu didn't look embarrassed at all, instead he was very enthusiastic: "Then let's hurry up, walking too slowly will affect others..."

"I can't say it has any impact, but they have to wait for me anyway."

A relaxed male voice with a hint of smile sounded, and it sounded somewhat familiar.

Lin Chaoxi looked in the direction of the voice and saw a young man who looked like a college student standing behind her. She thought he was a student queuing to borrow books and had not noticed him before. Now she looked carefully - a white shirt, a black turtleneck sweater, and gold-rimmed glasses. The student looked very gentle, but of course he could also be a "gentlemanly loser" with a lot of bad intentions.

Lin Chaoxi looked at each other in shock, speechless for a long time.

"Hello." Pei Zhi was the first to react from his stupor.

"Teacher Xiaojie?" Lin Chaoxi asked tentatively.

"You... why are you here! And why are you nearsighted!" Lu Zhihao asked in surprise.

"Fake." Xie Ran took off his glasses and hung them on his sweater pocket, looking very casual.

Not far away, the leader sister who was about to lead the main force upstairs saw Jie Ran and was obviously relieved. She trotted over and said, "Senior, you are finally here."

Xie Ran smiled and looked at his watch: "Why do you say 'finally'? Didn't it say 2 o'clock? I'm early."

The female team leader blushed. Lin Chaoxi didn't know how Jie Ran became a senior again and seemed very popular among the younger school girls.

The middle school students who participated in the training followed their leader back.

At the door of the reading room, the female leader softly introduced to the children: "Let me introduce you to your future homeroom teacher, Teacher Jie Ran. I brought you here, and you will follow Teacher Jie from now on."

The children looked at the handsome teacher Xie with hopeful eyes. Only a few of them who had participated in the elementary school Jin Cup competition training camp woke up quickly and looked at Xie Ran vigilantly.

"Lu Zhihao, what do you mean by that look?" Jie Ran still smiled.

"I'm a little worried about you."

"I'm such a good big brother, why are you worried?" Jie Ran looked at the other children, "The classroom is upstairs, let's go up with your sister Xiao Yan."

The female leader who was called "Sister Xiao Yan" blushed again. Jie Ran was really good at picking up girls. Three years later, the water in his belly seemed to have become even darker.

The main force began to move again.

Jie Ran deliberately slowed down his pace, pulling her and Pei Zhi and the others to the end of the team.

"It's been so long since we last met, Xiaolin and Xiaopei, do you miss me?"

"Not bad." Lin Zhaoxi and Pei Zhi said at the same time.

"You two are still so in sync." Xie Ran looked like he was reminiscing with an old friend, and looked away, "Where's classmate Xiao Zhang? Has the villain changed now?"

Zhang Liang: “…”

Jie Ran was too straightforward, and they all looked at Chen Chu, who was walking in front and chatting enthusiastically with the team leader, and they were trying very hard to hold back their laughter.

The gap between them, which had been widened after three years of not seeing each other, was suddenly narrowed.

"Teacher Xiaojie, why are you here to lead the math training team again?" Lin Chaoxi asked.

"I've told you many times, read Xie." Xie Ran said helplessly, "I passed the entrance exam for Sanwei's graduate school and now I'm studying here. I miss you guys so much, so I took on this heavy task."

"Department of Mathematics?" Lu Zhihao was shocked.

"What else?"

"You are so awesome!"

"Thank you."

"Then who is your mentor?" Zhang Liang suddenly asked.

"Could it be Professor Zeng?" Lu Zhihao's eyes lit up.

Pei Zhi also looked at him intently, expecting Jie Ran's answer.

In elementary school, Professor Zeng Qingran's speech obviously took root deeply in the children's hearts.

"Hey, don't you know that our Professor Zeng and Professor Feng from Yongchuan rarely supervise PhD students, not to mention that I am a master's student."

"We are still in junior high school..."

"How do we know so much..."

"That's right." Jie Ran accepted their ignorance.

The real academic circle is still too far away from these kids. But after hearing this, Lin Chaoxi looked at Pei Zhi subconsciously, and said, "When you become Professor Zeng's student in the future, you will still be just an undergraduate, right?"

"Can I see what books you borrowed?" Xie Ran suddenly asked her.

"Ah?" Lin Chaoxi subconsciously handed the book over.

Jie Ran took it, looked down at the title of the book, and then was stunned.

"Teacher Lin asked you to borrow it?" Xie Ran was still very polite to Old Lin and called him teacher.

"Um."

Walking in the library corridor, Jie Ran opened the book and flipped through a few pages at random: "Now I believe what he said."

"What are you talking about?"

"He said he taught here."