The most popular winter activity for children is sled riding.

孩子们最喜欢的冬季活动是滑雪橇。

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Thus the gradual slowing of activity and thought during any winter season is necessary.

因此，任何冬季里，行动力和思维力的渐趋缓慢都是必须的。

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What's the Best Winter Cross-Training Activity?

冬季最好的替代训练是什么？

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What's the Best Winter Cross-Training Activity?

冬季最好的替代训练是什么？

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