清朝割让给俄罗斯的领土难以要回来，打下藏南主动放弃不应该，长白山是老毛割让的

来源: LinMu 于 2016-12-14 23:43:31 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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