名词
中文翻译：轻型直升机
同义词：
['lightplane', 'light aircraft', 'light utility aircraft']
例句：
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1. The police helicopter was seen flying over the city.
警用直升机被看到飞越城市上空。
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2. The military helicopter was used to transport supplies during the war.
军用直升机在战争期间用于运输物资。
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3.The helicopter is a popular mode of transportation in many countries.
直升机是许多国家流行的交通工具。