短语中文翻译
中文翻译：已经服务
同义词：
['have served', 'have been in service', 'have been on duty', 'have been engaged例句：1. The soldiers had been in service for three years.（士兵们已经服役三年了。）2. He has served as a police officer for many years.（他担任警察多年了。）']
例句：
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1. The soldiers had been in service for three years.
士兵们已经服役三年了。
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2. He has served as a police officer for many years.
他担任警察多年了。
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3. She has been on duty since dawn.
她从黎明开始就值勤了。