名词
中文翻译：无人机
同义词：
['drone', 'unmanned aerial vehicle (UAV)', 'remote-controlled aircraft']
例句：
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1. The police used drones to monitor the protest.
警方使用无人机来监控抗议活动。
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2. The drone flew over the city, taking pictures of the construction site.
无人机飞过城市，拍摄了施工现场的照片。
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3. The drone was equipped with a camera that could capture high-definition footage.
无人机配备了一台能够拍摄高清画面的相机。