Fluorination
n. 氟化作用
🗣️ 情景例句
How are you doing?
你怎么样？
If you buy that home,will you spend the rest of your life there?
如果你买那住宅，你将在这里过余下的日子吗？
He was a model of a different kind of political leader.
他还是一个与从不同的政治领袖的典范。