Backscratching
n. 为共同利益而互相利用
🗣️ 情景例句
You're a big boy.
你是个大孩子了。
Whom will you race with?
你将和谁比赛？
I'm very sorry. I borrowed a book from the library two weeks ago.
“很对不起。两周前我从图书馆借了一本书。