名词
中文翻译：旋翼机
同义词：
['rotorcraft', 'rotor-wing aircraft']
例句：
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1.The military uses rotorcycles for transportation and reconnaissance missions.
军队使用旋翼机进行运输和侦察任务。
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2. The new model of the rotorcycle is expected to be more fuel-efficient than its predecessor.
新型旋翼机的预计燃油效率将比其前身更高。
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3. The rotorcycle was designed to reduce noise pollution in urban areas.
旋翼机的设计旨在减少城市地区的噪音污染。