Aldehydene
乙炔
🗣️ 情景例句
My boss does everything by the book.
我们老板一切照章办事。
Banking is such a boring business; I believe I'll take a short snooze.
警卫银行是桩枯燥的差事，且打个盹吧。
Every day he made one of the smaller animals bring him something to eat.
每天他让一只小动物拿东西来给他吃。