知进退，难！人类几千年的历史发展不断地重复着同样的错误。

来源: 方外居士于 2025-04-07 13:47:02 [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.