Parkour is a physical activity that is difficult to categorize .

跑酷是一项难以归类的身体活动。

Now this abandoned place is often visited by local tramps , fat rats , parkour lovers and peaceful photographers .

现在只有当地的流浪汉，一些肥老鼠，酷跑迷和热爱和平的摄影家才会拜访这遗弃之地。

Parkour is a challenging and demanding discipline , therefore learning parkour must always be approached with sensibility and caution .

酷是一项充满挑战和危险的体育项目，因此学习跑酷时必须时刻保持清醒和敏感。

A characteristic of parkour is efficiency .

跑酷的一大特点是效率。

Because of its unique nature , it is often said that parkour is in its own category .

由于其独特本质，跑酷通常被认为是自成一派的。