Backscratching
n. 为共同利益而互相利用
🗣️ 情景例句
You look bothered. Is there something I can help you with?
看你好像有点烦恼，有什么我可以帮忙吗？
Please sit down and have a glass of milk.
请坐下来喝一杯牛奶。
that intelligent life is bound to be a natural part of the universe.
有智力的生命必然是宇宙的自然组成部分。