名词
中文翻译：警报板
同义词：
['alarm clock', 'alarm clock', 'warning plate例句：1. The policemanplaced the alarm plate on the door towarn people of an impending storm.（警察把警报板放在门上，警告人们即将到来的暴风雨。）']
例句：
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1. The policemanplaced the alarm plate on the door towarn people of an impending storm.
警察把警报板放在门上，警告人们即将到来的暴风雨。
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2. The oldman used to keep a small alarm platein his room for safety reasons.
这位老人过去为了安全原因，在他的房间里放置了一个小警报板。
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3. The alarm plate wasdesigned to sound an immediate alert if someoneentered the room without permission.
这个警报板设计成如果有人未经允许进入房间就会立即发出警报。