All it takes is a little random spot where a few more grains of sand land than others.

只需要一个随机的点，稍微多几粒沙子着陆。

Paul, unable to use his hands, continued his tumble onto the sand, landing with a roll that took up the force and brought him back to his feet in one motion.

Paul 无法用手，继续在沙滩上翻滚，然后翻滚着地，吸收了力道，他一下子站了起来。