Dichloroethane
二氯乙烷
🗣️ 情景例句
They'll be at your door within a few minutes.
他们会尽快送到你的门口。
Sorry, She is out. Shall I take a message?
抱歉，她外出了，你要留口信吗？
When's the next train?
下一班车是什么时候？