古代工程能力有限，除非地震，否则不会有区别。子午谷由王莽整修过，稍微好走一些。本来可能还要爬一些碎石区域

来源: 老财主说两句于 2025-04-12 16:33:08 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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