音标:['kauntdaun] ; 柯林斯词典等级:1 级;
n. 倒计数
[电] 指示串联中的操作数固定的记录减少
n. counting backward from an arbitrary number to indicate the time remaining before some event (such as launching a space vehicle)
词型变化:名词复数形式 : countdowns
词性分布:
名词100%

countdown的用法和样例:

例句

用作名词(n.)
  1. His heartbeat escalates, like the countdown for death.他心跳加快,就象死亡在倒数。
  2. I will never employ any device with a digital countdown.我将不会使用任何倒数计时用具。

词汇搭配

  • countdown profile操作程序表
  • countdown circuit发射控制电路,脉冲分...
  • automatic countdown自动倒数时间计算...
  • trigger countdown触发器脉冲分频...
  • countdown sequence timer逆序计时器
  • count down(发射火箭等时)倒读...

经典引文

  • The count-down begins for the first Test match.

    出自:Times

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