有。alarm作名詞時意為“鬧鐘；警報，警告器；驚慌”。作及物動詞時意為“警告；使驚恐”。一般來說會用“Alarm Clock”來表示鬧鐘；鬧表；復位時鐘；機鬧表的含義。

alarm的例句

An alarm sounds when the temperature reaches a predetermined level.

溫度一達到預設的度數(shù)，警報就會響起來。

When I saw the smoke, I tried to sound the alarm.

看到煙后，我就設法發(fā)出警報。

Could I have an alarm call at 5.30 tomorrow, please?

請在明天早晨5:30打電話叫醒我好嗎？

A car alarm went off in the middle of the night.

半夜里一輛汽車的警報器突然響了起來。

The number of reported crimes is increasing at an alarming rate.

報警案件的數(shù)量正在以驚人的速度增長。