Fluoridizing
v. 用氟化物处理( fluoridize的现在分词 )
🗣️ 情景例句
Will you excuse me?
我失陪了
It's a long story.
真是一言难尽。
that people have for years assumed that the process of losing vigour with time,
多年来就已认识到。生命力随着时间流失而丧失活力，