Dialkyl
[机] 二烷基
🗣️ 情景例句
Aren't you happy with your present occupation?
你对目前的工作不满意吗？
You ought to have that coat cleaned and pressed.
你应该把那件大衣清洗并且压一下。
The house has many large rooms and there is a lovely garden.
这栋房子里有许多房间，还有一个漂亮的花园。