| 释义 |
countdown['kauntdaun]n. 倒计数【电】 指示串联中的操作数固定的记录减少 countdown count.down AHD: [kount“doun”] D.J. [6ka&nt7da&n]K.K. [6ka&nt7da&n]n.（名词）1. The counting backward aloud from an arbitrary starting number to indicate the time remaining before an event or operation, such as the launching of a missile or space vehicle.倒数报时：从任意的一个数字开始倒着数，以表明距离某件事或操作（例如发射导弹或宇宙飞船）的时间2. The checks and preparations carried out during this activity.准备过程，准备工作：在倒数报时期间所进行的检查和准备 |