Extreme skiing is a sport done in the open wilderness, away from the protection of commercial ski areas.

极速滑雪是一种在荒野地区玩的运动，远离营业滑雪区的保护。

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Extreme skiing is a sport done in the open wilderness, away from the protection of commercial ski areas.

极速滑雪是一种在荒野地区玩的运动，远离营业滑雪区的保护。

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