According to her research, runners hit the ground with as much as four times their body weight per step, while race walkers, who do not leave the ground, create only about 1.4 times their body weight with each step.
她的研究表明,人在跑步时,脚每次着地对地面的压力相当于自身体重的四倍,而竞走者不完全离开地面,其每步的压力只有自身体重的1.4倍。
He sank deeper into the mud with each step.
他每走一步,就往泥潭里陷更深。
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