| 释义 |
| | | | NOUN | | | | | /ˈkaʊntˌdaʊn/ | | | | | 1 | the counting of numbers backwards , for example from ten to zero , before something important happens 倒计时 | The countdown for the shuttle launch has already begun. 航天飞机的发射已经开始倒计时了。 | | | | | 2 | the period of time just before an important event （重大事件）临近的时刻 | | |