And as athletes have realized that we're perfectly suited for ultra-endurance, they've taken on feats that would have been unthinkable before, athletes like Spanish endurance racer Kílian Jornet.
当运动员们理解到 我们完美适应长时间持续性运动， 他们展示出在以前不可思议 的技巧， 就如同西班牙长跑运动员克里安.琼尼特。