Fluoridizer
氟化剂, 氟化器
🗣️ 情景例句
You really have been working too hard.
你们确实太忙了。
Set a beggar on horseback and he'll ride to the devil.
小人得意，忘乎所以。
I think we can draw up a tentative plan now.
我认为现在可以先草拟一具临时方案。