n.倒数读秒,倒计时,大事临近的时期,准备过程,准备工作
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 to the wedding
婚礼的临近
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。