名词
中文翻译：电警铃
同义词：
['electrical warning', 'electrical alert例句：1. The house isequipped with an electrical alarm system to protectagainst break-ins.（这所房子配备了一个电警系统，以防止入室盗窃。）']
例句：
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1. The house isequipped with an electrical alarm system to protectagainst break-ins.
这所房子配备了一个电警系统，以防止入室盗窃。
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2.The police received an electrical alarm that triggereda search for the missing person.
警方收到了一个电警，触发了对失踪人员的搜索。
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3. The elderly man was woken upby an electrical alarm in his bedroom.
这位老人被卧室里的电警吵醒。