countdown

名词 n. 动词 v.
中文释义

英文释义

名词 n.
  1. A count backward in fixed units to the time of some event, especially the launch of a space vehicle.
  2. The acts of preparation carried out during this period.
  3. A radio or television program counting down the top songs of a given week, usually in reverse order and ending with the number one song.
动词 v.
  1. To count down. nonstandard
    — This was accomplished in the old system by polling a software variable representing the number of prebleach bin and issuing a software command to trigger the AOM once the variable has countdowned to zero.

词形变化

countdowns plural count down alternative count-down alternative countdowns present,singular,third-person countdowning participle,present countdowned participle,past countdowned past count down alternative count-down alternative

词汇关系

相关词
count-off countout

词源

词源 1
From count + down.
词源 2
From count + down.
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