The spaceship is already being counted down.

宇宙飞船已开始倒数计时了。

The whole world was counting down to the new millennium.

全世界都在倒计时迎接新。

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

+ 安装Clocker之后，会在状态栏出现距离某一事件剩余时间，这一事件可以自行定义。