小时候玩越野滑雪，要等下雪几天后，太阳晒过，表面形成硬壳。只在表面滑，不陷下去，很轻松的

来源: fuz 于 2023-01-16 19:01:52 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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