虽然大多数人认为运动只是为了帮助小孩子睡觉，但重复的运动或摆动可能会帮助一个成年人。

While most people only think of movement to help a small child sleep, repeated movement or swing may help a full-grown adult.

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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。

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.

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喜悦在去年停止了摆动运动。

Joy at last stopped the swing's movement.

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