The whole world was counting down to the new millennium.

世界都在倒计时迎接新千年的到来。

The spaceship is already being counted down.

宇宙飞船已开始倒数计时了。

Clocker installs into the Firefox statusbar where it will count down the time remaining until some event.

+ 安装Clocker后，会在状态栏出现距离某一事件的剩余时间，这一事件可自行定义。