人类文明是在不断进步的。任何分析要有时间参照点。

来源: 十具于 2021-02-25 22:01:38 [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.