秦長城有完全是土磚的，而且不管是土磚，還是條石填泥土，這樣的秦長城，地基不穩，難道就不會塌？我的假設非常合理啊。

來源: 咲媱於 2024-05-13 14:11:12 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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