这样的竞赛可能是与朋友协作，在特定时间完成步行10万步的步行；也可能是一日三餐都吃健康食品。
An example might include collectively walking 100, 000 steps with friends by a certain day and time or eating three healthy meals a day.
这样的竞赛可能是与朋友协作，在特定时间完成步行10万步的步行；也可能是一日三餐都吃健康食品。
An example might include collectively walking 100, 000 steps with friends by a certain day and time or eating three healthy meals a day.
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