名词
中文翻译：Unknown
同义词：
['protectiveunit', 'protection unit']
例句：
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1. The police protection unit is responsible formonitoring the public's safety.
警察保护单位负责监控公众的安全。
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2. Thecompany has established a protectionunit to ensure the safety ofits employees.
该公司已设立一个保护单位，以确保员工安全。
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3. Theprotection unit was established toprotect the environment and prevent pollution.
保护单位被设立来保护环境并防止污染。