Fluoridation
[医] 氟化
📖 牛津释义
fluoridation
n[U].
🗣️ 情景例句
Well, you have your own tuxedo.
噢， 你有自己的燕尾服。
Do you ever study English on Sunday?
你曾经在星期日学英文吗？
Wei Hua's pen was broken, so she needed a new one.
魏华的钢笔坏了，所以她需要一支新笔。