Defluorination
[化] 脱氟作用
🗣️ 情景例句
When my grandpa is in a bad mood, he's grouchy with everyone.
爷爷脾气坏的时候，对所有的人都不满意。
I stayed and did some extra work.
我留下加了一会儿班。
How was this possible?
这种传递是怎样进行的呢？