每次天灾草原大旱，牲畜羊群大减，北方游牧民族就大举入侵中原抢劫财富杀人放火，战端立起。

来源: 老生常谈12 于 2025-06-16 16:58:16 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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