名词
中文翻译：指定号码
同义词：
['designated number', 'designated numbering']
例句：
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1.The company assigned a designation number to each employee for easy identification.
公司给每位员工分配了一个指定号码，以便容易识别。
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2. The police department uses designated numbers to track down criminals.
警察局使用指定号码追踪犯罪分子。
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3. In the event of an emergency, we use designated numbers to contact emergency services.
在紧急情况下，我们使用指定号码联系紧急服务部门。