Polyhalogenation
多卤化反应
🗣️ 情景例句
I'll have to stand up and let the elderly lady have my seat.
我得起来把座位让给这个老婆婆。
The restaurant was filled,so we decided to go elsewhere.
餐馆塞满了人,因此我们决定到其它地方去。
It 'flies', therefore, but it cannot fly higher---
这样，船就能飞了，但飞不高。