"Look, in the figure of this problem, removing a support link a is equivalent to removing a constraint, and then cutting it from the steel node is equivalent to removing three constraints, and we can get a statically determinate cantilever structure. So there are four redundant constraints, which is a fourth-order hyperstatic structure..."
"… "
"For this question, first analyze the right side. It can be seen that the reaction force of the lower right corner support is zero. Therefore, there is no load on the right half, and there is no reaction force. It can be directly removed. There is no shear force on the left half of the horizontal beam, only the left half of the vertical rod has shear force..."
"… "
Tan Yin looked at the question in front of her in despair. She could understand every word Chu Hang said separately, but when they were put together, she felt confused.
This study group is not hurting each other at all, this is a one-sided massacre by Chu Hang!
"Tan Yin? Do you understand?"
Tan Yin shook her head very honestly.
To her surprise, Chu Hang did not show any disgust or contempt. He remained as cold as ever: "What didn't you understand?"
"I just... I didn't really understand..."
"I'll tell you again, please listen carefully."
Chu Hang's attitude was still not enthusiastic. He frowned slightly, as if he was completing a task, and looked impatient. However, in contrast to his expression, his explanation was very detailed and patient. Once Tan Yin showed a hint of confusion on her face, he would repeat the corresponding part in a simpler way.
Because of her resistance to the major of architecture and her inherent weakness in physics, Tan Yin had no interest or motivation in learning architectural mechanics. Even if she really wanted to review seriously before the end of the semester, she had no idea where to start and had no idea what to do. However, after Chu Hang's explanation, those questions that Tan Yin had originally thought were incomprehensible actually had a clue...
Although there is some progress, it is not easy for a poor student like Tan Yin to catch up. These boring and frustrating questions make her subconsciously want to escape.
"Chu Hang, why don't we stop here today?"
Chu Hang frowned: "It's only been an hour. With your foundation, you need to study for at least two hours a day to see results. Study for another hour before you can leave."
"It's been an hour?!" Tan Yin was shocked. She looked at her watch and said, "It's like this, Chu Hang. I have something else to do. How about we meet again later for another hour today?"
Chu Hang pursed his lips and said nothing. Tan Yin quickly took the opportunity to pack her things and ran away.
*****
After escaping from the terrifying sea of structural mechanics questions, Tan Yin quickly walked to the snack bar outside the school.
She said that she had something else to do, but that was not an excuse, as Tan Yin had an appointment here.
Sure enough, Zhou Ming was already waiting there. When he saw Tan Yin, he pushed his glasses and waved at her.
Zhou Ming is Tan Yin's childhood sweetheart. Their mothers are teachers in the same junior high school. At the beginning, their two families were neighbors. They were born in the same year and always played together. They can be said to have grown up together.
Zhou Ming is half a year younger than Tan Yin. To be fair, he should call Tan Yin "sister". However, his personality is completely opposite to Tan Yin's. Zhou Ming is soft-tempered and quite docile. He is shy and easily bashful. He is talkative only with acquaintances. When facing strangers, he is taciturn. He looks delicate and quiet, and wears glasses with a bookish air. When he was a child, he always followed Tan Yin, and Tan Yin always treated him as a younger brother. The two went to the same kindergarten, elementary school, junior high school, high school, and now they are in the same university. However, Zhou Ming did not study architecture. He studied law and his grades were very good.
"I've taken a part-time job in the city center, planning to deliver food. Can you lend me your electric donkey for the weekend?"
Zhou Ming nodded, then became a little confused: "Delivering food? Didn't you take on some coloring outsourcing work for a comic studio before? I remember you said you could make 30 per frame, and if you color 60 frames a week, you can easily make 1,800. Why do you want to deliver food?"
It would be fine if she didn't talk about this. As soon as she talked about this, Tan Yin became very annoyed: "What a rubbish studio. I worked diligently for a month and was waiting for the settlement, but they packed up and ran away. They were just swindlers. I worked for nothing and didn't get a penny. I was angry for a whole week! I don't want to cooperate with these comic studios anymore! After all, drawing other people's things has no soul!"
Zhou Ming glanced at Tan Yin and carefully reminded her: "Delivering food has no soul..."
Tan Yin glared at Zhou Ming: "Delivering food can strengthen my body and help me realize the Chinese dream faster! Let me run into socialism!"
"… "
Zhou Ming shook his head in a speechless manner, then tried to persuade him earnestly: "But delivering food is too hard. If you are short of money recently, I still have a lot of living expenses. How much do you want?"
Tan Yin waved her hand: "Goodbye." She winked at Zhou Ming, "Didn't you tell me last time that you were in a relationship recently? You should save the money for your girlfriend."
Zhou Ming felt a little shy when talking about this. He looked away and said, "Although her family is well-off, she is not a materialistic girl. She never spends my money. I even wanted to treat her to a meal, but she refused."
"So how do you two usually date? Do you go to the cafeteria together?"
"We don't see each other very often. Sometimes we go to the library to study together, but she joins a lot of clubs and has a lot of things to do, so she is often called away in the middle of the day." Zhou Ming talked about his girlfriend with a happy and shy expression on his face. "Besides, she is a freshman and I am a sophomore. Our schedules conflict a lot, so we usually communicate on WeChat more often."
Zhou Ming’s girlfriend is a freshman in their law school. She met Zhou Ming during the school’s orientation session. According to Zhou Ming, they came together naturally.
"We're all in the same school, why are you guys acting like you're in a long-distance relationship?" Tan Yin took a deep sip of the bubble tea in her hand. "When are you going to bring me over for dinner so we can get to know each other? Why aren't you here today?"
"She has something to do today. Her club is having a meeting." Zhou Ming's face turned slightly red. "Next time, when we are more stable, I will bring her to you."
"Okay." Tan Yin also smiled, "Then you better settle down quickly. You're the only one who's so cautious. You take your girlfriend to meet a friend, and you make it sound like you're meeting the parents. You should settle down first before meeting her."
…
*****
After chatting with Zhou Ming about other things, complaining about the boredom of life recently, and eating a lot of snacks and sweets, Tan Yin said goodbye to Zhou Ming and returned to the dormitory.
As a result, as soon as she entered the dormitory, Jiang Yilu told her a piece of gossip to dispel Tan Yin's boredom.
"The latest intelligence, my spy just saw Chu Hang inviting a very beautiful girl to dinner at a western restaurant outside the school. You know, Chu Hang usually seems to have a necrosis of laughter, but it turns out that he was talking and laughing with the girl during the meal, and the girl was very intimate with him." Jiang Yilu said while taking out her mobile phone, "Look, these are the photos of the scene sent by the informant in the front!"
Jiang Yilu is the moderator of the gossip section of the school forum. In order to increase the traffic of the gossip section, Jiang Yilu paid out of her own pocket to collect gossip from the whole school. Those who provide clues can receive information fees ranging from one hundred to two hundred yuan depending on the explosiveness of the information. Therefore, she can receive various gossip submissions every day, and she has informants all over the world. She is considered a woman walking at the forefront of campus gossip.
Tan Yin leaned over to take a look. Although the angle of the photo was not very good because it was obviously taken secretly, she could clearly see Chu Hang and the girl sitting opposite him. The girl had long curly hair and was waving the dessert fork in her hand in a coquettish manner, while Chu Hang was cutting the steak with his head down, a slight smile on his lips.
Jiang Yilu sighed: "There is a lot of wailing on the campus forum now. Everyone thinks Chu Hang is about to be single. Alas, tonight is a hot date night for Chu Hang, but for millions of girls, it is a night of shattered dreams!"
Tan Yin stared at the posts on the campus forum several times, and suddenly found them more and more boring. Now that she had stopped drawing "Under Ten Thousand People: The Temptation of the School Prince", she had a lot of extra time. She simply took out the collection of questions that Chu Hang had explained to her in the afternoon, bit the pen and started to explore.
It was only then that Tan Yin realized that the difference between having someone to explain and not having someone to explain was simply too great. When Chu Hang was explaining, he explained it in simple terms, and Tan Yin was able to understand it in the end. But without Chu Hang, the question was as difficult as a mystery. She read for half an hour and felt a little discouraged.
Tan Yin knew that she had a serious imbalance in her academic performance. She was always among the best in all art-related courses, but she was a complete mess in all science and engineering-oriented courses. But even though she knew that this was not going to work, people were lazy. The more skilled and interested they were in something, the more they were willing to spend time studying it, and the easier it was to achieve results and feel a sense of accomplishment. However, if something they neither loved nor were good at was difficult and frustrating, they would be even less willing to do it. Thus, the cycle continued, and one side became a virtuous cycle, while the other side entered a vicious cycle, becoming increasingly poor and weak.
Just as she was thinking this, Tan Yin's cell phone rang. She looked down at the name on the caller ID and her hand froze when she was about to press the answer button.
Chu Hang
Why did Chu Hang look for me? Shouldn't he be enjoying his hot night of love at this time
Or...
Tan Yin was startled instantly and quickly picked up the phone. Before Chu Hang could say anything, she immediately assured him, "That comic! I have stopped updating it! I know your girlfriend will definitely not be able to accept it after reading it, and I will apply for deletion of the post later! The apology notice has also been issued! But please give me some time to make a backup. It has been serialized for more than half a year, and many of the interactive comments in it are very interesting. It is also my hard work. I can't bear to lose it all. I promise to back it up myself and never spread it out!"
As a result, after talking so much, Chu Hang just paused, obviously not getting into the mood: "What girlfriend?" He said in a cold voice, "I don't have a girlfriend." At this point, he lowered his voice as a warning and deliberately added, "Of course, I don't have a boyfriend."
"… "
"Now, go downstairs to the open area on the second floor of the library and bring your book on structural mechanics. I happen to be free now and can make up for the extra hour of today's class."
Tan Yin struggled and said, "Chu Hang, you are free but I may not be free. Look, you didn't even ask me if I have anything to do..."
"Oh, what's up with you?"
"have!"
"Then I'll give you ten minutes, and then free up some time." Chu Hang said coldly, "I'll wait for you here. If ten minutes haven't come, your study time tonight will be extended by another half an hour."
"… "
"The study group system requires a weekly report on mutual assistance. I will truthfully state your level of cooperation and enthusiasm."
You are so free, it seems you really don’t have a girlfriend...
However, facing Chu Hang's threat, Tan Yin was completely defeated: "Give me five minutes! I'll be there in five minutes!"
Chu Hang, ah Chu Hang, just wait for me!
*****
When Tan Yin arrived at the open area of the library, Chu Hang was indeed sitting at a table.
Although there are many study rooms in the library, talking is not allowed. In order to meet the needs of discussion and communication during study, several irregular corners on the second floor are used to create open discussion areas with small tables where people can not only talk but also drink beverages.
"Chu Hang, the moonlight is so beautiful tonight, why don't you go out for a walk?"
Before Tan Yin had finished her question, Chu Hang interrupted her coldly: "Did you understand the problem about multi-span continuous beams? Did you finish the force analysis of symmetrical trusses? Do you understand the zero-bar discrimination method?"
"… "
This is such an emotionless killer...
Chu Hang obviously didn't want to pay any attention to Tan Yin except to do the questions. After he intimidated Tan Yin with his eyes to sit down, he started to explain the questions.
As soon as she started to lecture, Tan Yin's usual self-confidence began to be shattered.
"This one won't work?"
"kindness… "
"What about this?"
"I don't really understand..."
"What about this question?"
"… "
For ten questions in a row, she either had no idea at all or was completely confused. Even though Chu Hang did not show any special emotions, Tan Yin was completely embarrassed.
She subconsciously wanted to run away: "I'm not in a good state tonight. I usually have to drink milk tea to do the questions at the same time."
Chu Hang didn't say anything. He took out his phone and after a moment, he raised his head: "I ordered milk tea takeout and continued to do the questions."
"… "
After working through two more questions, Tan Yin tried to survive again: "Actually, the atmosphere in the library is a bit too solemn for me. It makes me feel a bit depressed. I tend to get nervous in this environment, which can cause my thinking to get stuck and I can't study at my best..."
Chu Hang pursed his lips: "Then where can you achieve your best condition?"
"In the small garden behind the library?"
**
Fifteen minutes later, Tan Yin was sitting in the small garden behind the library, swatting mosquitoes with a cup of milk tea in her hand, feeling like crying but without tears.
This small garden used to be a dating spot for lovers, because the street lights were dim and ambiguous, the garden was quiet and beautiful, and there were benches scattered among the trees on both sides of the winding path. On such a beautiful summer night, there should be couples sitting on the benches, but now -
"In this figure, the reaction force of the left vertical rod is a vertical force, and its direction is along the axis..."
Chu Hang was a man of his word. Since Tan Yin mentioned the small garden, they went to the small garden. He sat at one end of the bench and ordered Tan Yin to use the flashlight function on her mobile phone to provide lighting while he continued to explain the question attentively.
Tan Yin's original intention in making this suggestion was just to take advantage of the situation and say that it was too late tonight, so let's forget it and go to the small garden next time when we form a study group during the day. Of course, as for the future, there are always many ways to postpone it until there is no future.
But I didn't expect Chu Hang to play by his own rules...
"Chu Hang, how about we go back to the library?"
Chu Hang raised his eyes, his tone was calm as if he deserved a beating: "No, since you want to come here to study, then stay here."
"But there are so many mosquitoes here! It's like they are here to donate blood!" Tan Yin said in frustration, "Don't you feel itchy?"
Chu Hang smiled emotionlessly: "I don't attract mosquitoes. If you feel itchy, just bear with it. After all, you will be in a better state of learning here." He looked at Tan Yin meaningfully, "Have you ever heard of this saying? You have to finish the road you choose even if you have to kneel down."
"… "
Chu Hang glared at Tan Yin: "What's wrong? I've satisfied your request to drink milk tea and study in the small garden, but you still can't study?"
"Actually... there is another most important requirement that has not been met in order for me to really get into the state in the small garden." Tan Yin blinked and sighed, "If this can't be met, I think it's better to go back to the library. After all, after thinking about it, the library has a strong learning atmosphere, and I am more motivated!"
Chu Hang sneered: "Okay, if you have any other requests, tell me and I will satisfy you."
It was obvious that he was ready to fight to the death with Tan Yin. In order to deal with Tan Yin and make her suffer the consequences, he was determined to make her study in the small garden while feeding mosquitoes.
However, Tan Yin was not afraid at all. She cleared her throat and shyly tried to lean towards Chu Hang.
Chu Hang was startled and stood up. He lowered his voice and glared at Tan Yin: "What are you doing?!"
"Didn't you say you would satisfy me in any way you wanted?" Tan Yin said with a calm smile, "My last request is to lean on your shoulder. This way, I will be able to study more efficiently!"
"… "
"Didn't you say that we should stick to studying in the small garden?"
Chu Hang glared at Tan Yin with gritted teeth, and finally gave in. He turned his head away and said, "Let's go back to the library!"
Humph, only the shameless ones will rule the world!