越南朝鮮，其北部一個被中國殖民千年一個4百年，太遠了統治成本太大而保不住，後來就連蒙古人也無可奈何。

來源: insoine2 於 2021-12-18 19:21:26 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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