countdown。
英 [ˈkaʊntdaʊn] 美 [ˈkaʊntdaʊn]。
n.倒数读秒，倒计时(如发射宇宙飞船时);大事临近的时期。
复数： countdowns。
双语例句：
The countdown to Christmas starts here.
现在开始圣诞节倒计时。
There were three more things to do before countdown.
开始倒计时之前还有3件事要做。
The countdown has begun for the launch later today of the American space shuttle
美国航天飞机的发射已于今天晚些时候开始进入倒计时。
The countdown to the Notting Hill Carnival is in its final hours.
诺丁山狂欢节已经进入了最后几个小时的倒计时。
smiley0603
