Fluorination
n. 氟化作用
🗣️ 情景例句
Can't miss it.
错不了的。
A man can not spin and reel at the same time.
一心不能二用。
This time he was barking so that someone would let him out! Since then, he has developed another bad habit.
这次它叫着让人把它放出去！从那以后，它养成了另外一种坏习惯。