Fluorid
n. 氟化物
🗣️ 情景例句
so you can drive her home after the party.
在派对结束后送她回家。
Who would you like to invite to the party?
你要邀请谁来宴会？
I don't have any small pads. I only have large one. Do you want a pad?
我没有小本的信纸，只有大本的。您要一本吗？