noun 下载 🔗分享 四旋翼飞行器,四轴飞行器 A rotorcraft propelled by four rotors. Examples : "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。 technology vehicle electronics machine 与AI对话词汇游戏阅读练习