Backscratching
n. 为共同利益而互相利用
🗣️ 情景例句
Or you win, and I cook dinner for the entire family.
要是你赢了， 我替全家做晚餐。
What time does the first train to Boston leave?
第一班去波士顿的列车什么时间开出呢？
Yes, I'm afraid you're right. I'll go tomorrow afternoon.
恐怕你说得对。我明天下午就去。