秦长城有完全是土砖的，而且不管是土砖，还是条石填泥土，这样的秦长城，地基不稳，难道就不会塌？我的假设非常合理啊。

来源: 咲媱于 2024-05-13 14:11:12 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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