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
Not at all. It's my pleasure.
不客气。这是我的荣幸。
Everything has its time and that time must be watched.
任何事情都有好的时机，不要随意放过。
Hi, Jim. What's the time?
喂，吉姆， 几点了？