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, I'll tell Richard,
嗯， 我会告诉Richard，
One usually pricks up one's ears when his name is called.
人在被叫到自己的名字时，通常要侧耳倾听。
Beautiful day, isn't it?
今天天气真好，是不是？