count·down /ˈkaʊntdaʊn/ n. 1. (起爆核弹、发射导弹等前的)倒计数，逆序计数(指倒数时间的口令，如9, 8… 2, 1, 发射)；倒计数阶段 2. 准备过程；准备工作 The countdown to war began. 战争分分秒秒地逼近。 There were only nine months to go and the whole family felt the excitement of the countdown. 只剩下9个月时间了，全家都感到大事临近的兴奋。