自行车手做BMX技巧 Biker doing BMX tricks

一名身穿黑色衬衫的男子骑着他的BMX自行车跳了起来，在镜头前做了一个特技自行车，来到公园坡道上。背景是树木和带云的晴朗天空。

A man wearing a black shirt jumps with his BMX bike, doing a trick bike over the camera onto a park ramp. Trees and a clear sky with clouds are in the background.