Warning: file_put_contents(/www/wwwroot/ppbbu/28094.com/cache/7d46d3707803180395c4b45d29a1554a.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/28094.com/index.php on line 55 quadcopter是什么意思，quadcopter的翻译，quadcopter音标、读音、用法和例句_贰靶汉英词典
a small remote-controlled aircraft like a helicopter, with four blades that go around on top, used especially to film or photograph things from the air. A quadcopter is a type of drone.