自行车车辙纵横交错；光滑的斜坡显然被用来玩滑板或者“死亡之幕”的游戏，而且至少造成了几起“膝盖骨摔伤”和单车特技事故。

Tracks crisscrossed it; smooth areas of slope indicated regular use by skateboards and Wall of Death, or at least Wall of Seriously Grazed Knee, cyclists.

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警告：此视频中特技由专业选手完成，请勿模仿。滑板时须佩戴相应安全护具。

Warning: the stunts in this video were performed by professionals. Do not attempt anything from this video. Always wear the safety gear while skating.

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