same name difference

Chapter 1 is English class, the old witch's class, he dared to ask for leave because he thought

After Liang Liang took the medicine, he went out with Qin Quan to the cafeteria to buy something, and when he returned to work, he was not in a good condition.

Du Yunfei filled his empty water cup with hot water and returned to him. Liang Liang said thank you for the shoes, and reached for a book in the drawer, but found a letter.

Liang Liang was taken aback, looked at the plain envelope, and threw it into his schoolbag.