火砖是明长城,你去看看秦长城是什么建的。全都是土墙。现在风化都只剩下土堆。如果是泥土山的斜坡上修土砖长城,水泡不会垮?
本帖于 2024-05-13 12:04:27 时间, 由普通用户 咲媱 编辑
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