"What about that?"

"Well? What do you do? "

Gu Jingxing with cocoon fingers on her cheek: "I delayed your homework, so what to do?"

"Make up for me with a smile

Gu Jingxing whispered with a smile: "OK, I'll make up for you."

Song ran asked again, "do you have a final exam for adult undergraduate?"

"Well, there are troops."

"And how many points did you get?"

Gu Jingxing raised eyebrows and looked at her: "which subject are you asking?"

"Advanced mathematics."

"One hundred points."

Song ran trembled at him: "you Does that make sense you? I have such a high score, but I only got half of your score. The difference in strength is so great. The main responsibility lies in you, and you don't influence me at ordinary times. "

Gu Jingxing chuckled in a low voice and kneaded her head. The laughter was particularly spoiled: "well, it's up to me. It's up to me. I'll help you with your tutoring. Will you make amends?"

Song ran was holding his own report card. His psychological imbalance reached the extreme, and then he asked, "how did you do in other subjects? English test? "

"Yes."

"How much?"

"98 points, full marks for atomic physics, full marks for electromagnetics, full marks for thermodynamic Statistics..."

Song ran covered his heart and said, "well, don't say it. If you go on, I'm going to hit people."

Gu Jingxing low smile: "I am more leisure than you, have time to study, you are too busy."

Song ran nodded: "yes, I am too busy."

That's a good excuse.

Gu Jingxing touched her head: "OK, have dinner first. After dinner, I'll give you a lesson. If you master the method of advanced mathematics, it will be easy."

Song ran hung on him: "then please give me more advice."

The two had dinner together. The sun was long and it was more than six o'clock. The setting sun was sprinkled on the table through the balcony. Gu Jingxing stewed fish head tofu soup was delicious. Song ran couldn't help drinking two more bowls.

After dinner, he could not move with his stomach.

Gu Jingxing washed the dishes and chopsticks, took the book and came over: "OK, class begins."

Song ran looked at him with a bitter face: "don't you have to be so conscientious? I've just finished eating. Can you give me a break

Gu Jingxing pulled her to lean against himself: "well, listen first, I'll tell you about it. I'll sort it out for you, so that you can know why. When you sharpen your knife, you can't miss the woodcutter. If you get the title, you can't bury your head in doing it. You have to understand the deep meaning. Next time, you can do all kinds of things with the same question type."

Song ran leaned on him and nodded frequently: "well, it makes sense."

Gu Jingxing turned over the book and began to lecture: "calculus is the more difficult part in higher mathematics. It is very important to learn advanced mathematics. It is important not to be limited by the ideas of middle school. Some of the concepts in middle school are wrong..."

Song ran leaned on him, listened to his deep voice, looked out of the window, the sun was disappearing inch by inch on the horizon, the earth gradually darkened, and her eyelids gradually drooped.

It's over, song ran. How did you become a sleepy student?

Perhaps the environment is too comfortable;

perhaps Gu Jingxing's voice is too deep and pleasant.

Song ran leaned on his arm. Gradually, his eyes closed completely. Let me close my eyes for a while.

Gu Jingxing talked for a long time. When she turned around, she was sleeping soundly. She looked like a rotten wood.