The sport's rules require that a race walker's knees stay straight through most of the leg swing and one foot remain in contact with the ground at all times.

这项运动的规则要求竞走运动员的膝盖在大部分的腿部摆动过程中保持笔直，一只脚始终与地面保持接触。

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To make sure that they do not run, race walkers must have one foot on the ground at all times.

为了确保他们不跑步，竞走运动员必须保持有一只脚在地面上。

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"That was a tough race and I've got a lot of blisters on my braking foot as the pedal was very hard to push," he said.

这是很艰苦的比赛，在我的刹车一侧的脚上都起了不少水泡，因为刹车踏板踩起来很重。

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The hosts should have put the result beyond Scarlets' reach on the stroke of half-time, when Robertson won a foot-race to Matt Mustchin's forward kick.

BBC: Edinburgh 32-12 Scarlets

Not a car game (that could be fun but dangerous if people were inspired to play it while driving), but an app that challenged you and your friends to an on-foot race.

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It is a lush ballroom with a fresco ceiling and plaster frieze and large arched and curtained windows that, on Patriots Day, are blocked by a 6-foot high, 30-foot long tracking board that updates the media on the progress of the race.

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