Alkanolamine
链烷醇胺
🗣️ 情景例句
What happened?
怎么了？
Who minds his own business has no time to mind other folks.
为人只顾自己事，就无时间关心人。
One hour and seventeen minutes passed and we had not even covered half the distance.
1小时17分过去了，走了还不到一半路程。