文明程度高的族群也很可能被落后的族群征服甚至消灭，这在历史上屡见不鲜

来源: 加州耍猴人于 2021-06-20 18:19:41 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.