countdown是什么意思？

countdown

英[ˈkaʊntdaʊn] 美[ˈkaʊntˌdaʊn]

• n. 倒数读秒，倒计时，大事临近的时期，准备过程，准备工作；

复数：countdowns;

例句

• the countdown to the wedding 婚礼的临近
• Thursday : Watch Countdown or Brainteaser. 周四:看益智类节目.
• 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。
• ...the countdown to the next election. 下次选举的临近
• 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。

柯林斯高阶英汉双解学习词典释义

• N-SING
  (尤指航天器发射前的)倒计时
  A countdown is the counting aloud of numbers in reverse order before something happens, especially before a spacecraft is launched.
  例句
  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。 There were three more things to do before countdown. 开始倒计时之前还有3件事要做。
• N-COUNT
  临近时期
  The countdown to an event is the period of time leading up to the event.
  例句
  ...the countdown to the next election. 下次选举的临近

英英词典释义

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

行业词典

• 航天： 倒（数）计时；