Fluoridation
[医] 氟化
📖 牛津释义
fluoridation
n[U].
🗣️ 情景例句
Oh, it was nice meeting all of you.
哦， 很高兴会见你们各位。
Won't you be embarrassed to leave the party early?
你提早一点离开宴会也无妨吧？
As a reasonable guess, they might, on an average, be 100 light years away.
据合理推算，外星人离我们平均距离也有100光年之远