countdown

US /ˈkaʊnt.daʊn/
UK /ˈkaʊnt.daʊn/
"countdown" picture
1.

倒計時

the act of counting backward to zero, typically to mark the start of an event

:
The final countdown to the rocket launch began.
火箭發射的最後倒計時開始了。
We watched the New Year's Eve countdown on TV.
我們在電視上看了新年倒計時
1.

倒計時

to count backward to zero

:
The mission control began to countdown from ten.
任務控制中心開始從十倒計時
We need to countdown the days until our vacation.
我們需要倒計時直到我們度假的日子。