Downchange
（开车时）换低挡, 换成低速挡
🗣️ 情景例句
Unbelievable. I've got to read her new book as soon as it comes out.
真了不起。她的新书一出版我就得读一读。
I'm busy!
我在忙啦！
We can negotiate the unit price for large orders.
如果大量订购，单价可以再谈。