What does the student mean when he says to the teacher, "The teacher has bothered"?

It means that the teacher has worked hard and the students thank the teacher.

It took a lot of effort

Pinyin: fèI xρn

Interpretation: Consume the mind (often used as a polite expression when asking for help or thanking).

Source: Ceng Rui's "Leaving Shoes" in the Yuan Dynasty is the second fold: "But I don't know where the happiness of a scholar is born. It is also troublesome to ask my sister. "

If you see him, please give him this letter.

synonym

Torture sb.' s mind

Pinyin: láo shén n

Interpretation: refers to the consumption of energy and spirit; Politeness is used to ask people to do things.

Source: Qu Qiubai's Hungry Country Tour 1 1: "Ke is ill, please don't say anything, I'm afraid he will be annoyed."

Example: You are in poor health, so don't bother.