Alkarylamine
烷芳基胺
??? 情景例句
Don't mention it. What would you like to drink?
別客氣，想喝點什么？
Procrastination is the thief of time.
拖延即浪費時間。
I can hear something! said Lucy.Does anybody live on this island?
“我聽到什么東西了！”露茜說，“島上有人居住嗎？”