noun🔗Share四旋翼飞行器,四轴飞行器 A rotorcraft propelled by four rotors."My neighbor uses a quadcopter to take aerial photos of houses for his real estate business. "我的邻居用四轴飞行器给房子拍摄航拍照片,用来做他的房地产生意。technologyvehicleelectronicsmachineChat with AIVocabulary GamePractice Reading