名词
中文翻译：速度警察
同义词：
['speed controller', 'speed enforcer']
例句：
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1. The police are speed-cops on duty tonight.
今晚警察是速度警察。
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2. Speed-cops are responsible for enforcing traffic laws.
速度警察负责执行交通法规。
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3. The speed-cops were able to catch the thief in time.
速度警察及时抓住了小偷。