动词短语
中文翻译：发出警报
同义词：
['set off an alarm', 'sound an alarm', 'give a warning例句：1. The fire department was called to raise the alarm after the explosion.（消防部门接到报警后，在爆炸发生后立即出动。）']
例句：
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1. The fire department was called to raise the alarm after the explosion.
消防部门接到报警后，在爆炸发生后立即出动。
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2.He raised the alarm when he saw the thief in the alley.
他看到小偷在巷子里时立刻叫了起来。
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3. The police were raising the alarm about the suspicious activity in the city center.
警方正在就市中心的可疑活动发出警报。