1．n。时计；计时器；跑表；定时器。
2．例句
Thats a quarter-hour more you could be sleeping if you bought a coffee maker with a timer ． 如果你买了一个带定时器的咖啡机,你就可以多睡一刻钟。
Set the kitchen timer going 让厨房计时器开始计时。
