And then consider that Usain Bolt started by propelling himself out of blocks down a specially fabricated carpet designed to allow him to travel as fast as humanly possible.
接下来想一下尤塞恩 博尔特 从一个支架助推自己出发 支架下有着特殊的弹性地毯 目的是为了让他在一瞬间 跑出人类最高速。