Fluoridation
[医] 氟化
📖 牛津释义
fluoridation
n[U].
🗣️ 情景例句
First word ...
第一个字……
I'm going to buy him another one.
我正要买给他另一个。
Dan was most surprised when he heard the news.
丹听到这个消息后，惊奇万分，