| 释义 |
count·downBrE /ˈkaʊntdaʊn/ NAmE /ˈkaʊntdaʊn/ noun ~ (to sth)[sing. , U ]the action of counting seconds backwards to zero , for example before a spacecraftis launched 倒数读秒，倒计时（如发射宇宙飞船时）astronaut , countdown , dock , launch , mission , orbit , rocket , satellite , space , weightless [sing. ]the period of time just before sth important happens 大事临近的时期◆ the countdown to the wedding 婚礼的临近 |