count down

来源:百度知道 编辑:UC知道 时间:2024/04/30 07:43:48
count down用法都有什么?

count down:

(发射火箭等时)倒读数

英英解释:
名词count down:

1. counting backward from an arbitrary number to indicate the time remaining before some event (such as launching a space vehicle)
同义词:countdown

动词count down:

1. count backwards; before detonating a bomb, for example

用法的名词就不用说了,动词的话比如
Count down the number of days
Count down to Christmas 2007
都是倒计时的意思