一直没有想清楚，挑滑车的必要性在那里？放几块大石头在坡上不就把滑车碰飞了吗？

来源: L94607 于 2026-02-15 22:02:54 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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