Fluoride
[ ['fluəraid] ]
成人 Adult Edu
n. 氟化物\\n[化] 氟化物
📖 牛津释义
fluoride
n
chemical compound of fluorine 氟化物.
🗣️ 情景例句
Well, if they're not,
噢， 假如店不开的话，
Eat a peck of salt with a man before you trust him.
在你信任一个人之前，先要深入了解他。
It's a book.
一本书。