Dioctylsulfoxide
二辛基亞砜
??? 情景例句
What's the best way to learn English?
學習英語最好的方法是什么？
I will see her home.
我會送她回家。
I'm sorry I don't know. You'd better ask that policeman over there.
對不起，我不知道。你最好問問那邊的警察。