• n. 闹钟；警报，警告器；惊慌
• vt. 警告；使惊恐

来自意大利语all’arme, 全部拿起武器。

alarm

alarm: [14] Alarm was originally a call to arms. It comes from the Old Italian phrase all’ arme ‘to the weapons!’ This was lexicalized as the noun allarme, which was borrowed into Old French as alarme, and thence into English. The archaic variant alarum seems to have arisen from an emphatic rolling of the r accompanying a prolongation of the final syllable when the word was used as an exclamation.
=> arm

alarm (n.)

early 14c., from Old French alarme (14c.), from Italian all'arme "to arms!" (literally "to the arms"). An interjection that came to be used as the word for the call or warning (compare alert). Extended 16c. to "any sound to warn of danger or to arouse." Weakened sense of "apprehension, unease" is from 1833. Variant alarum is due to the rolling -r- in the vocalized form. Sometimes in early years anglicized as all-arm. Alarm clock is attested from 1690s (as A Larum clock).

alarm (v.)

1580s, from alarm (n.). Related: Alarmed; alarming.

1. Any escape, once it's detected, sets off the alarm.

一旦发现有泄漏，警报就会响起来。

来自柯林斯例句

2. He returned to the airport to find his car alarm going off.

他回到机场时听到自己的汽车报警器响了。

来自柯林斯例句

3. He expressed alarm about the government's increasingly bellicose statements.

他对政府越来越具挑衅性的声明表示担忧。

来自柯林斯例句

4. This has set the alarm bells ringing in Moscow.

这已给莫斯科拉响了警报。

来自柯林斯例句

5. An alarm links the police station to the divisional headquarters.

在部门总部和警察局之间连有警报器。

来自柯林斯例句