名词
中文翻译：海军
同义词：
['marine', 'navy service', 'naval force']
例句：
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1. He served in the navy for many years.
他服役于海军多年。
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2. The navy is responsible for maintaining order on the high seas.
海军负责维护公海上的秩序。
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3. The navy has been involved in numerous peacekeeping operations.
海军参与了多次维和行动。