今天我们要学的词是countdown。 Countdown是倒计时的意思。美国每次航天飞机发射升空前，控制中心都会countdown to the launch。 每年新年前夜，纽约时代广场都会挤满人，"getting ready for the official countdown to midnight," 准备参加新年到来前的倒计时。

星期三晚上，北京天安门广场上人山人海。媒体报导说，"people were celebrating the start of the one-year countdown to the Beijing Olympic Games," 庆祝北京奥运会倒计时一周年。好的，今天我们学习的词是countdown...