名词
中文翻译：无线电警卫
同义词：
['radio patrol', 'radio watch']
例句：
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1. Thepolice radio guard was on duty at thescene.
警察无线电警卫在事发现场值勤。
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2. The radio guard received a distress signalfrom the ship.
无线电警卫从船上收到了求救信号。
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3. The radio guard kept an eyeon the security camera feeds.
无线电警卫监视着安全摄像头的录像。