Downchange
（开车时）换低挡, 换成低速挡
🗣️ 情景例句
That's easy.
这很容易。
When you compare the prices,you must take everything into consideration.
当你在考虑对比价格时，首先必须把一切都要考虑进去。
The normal price of a ticket is $2,000!
而正常票价是2，000英镑！