知之为知之不知为不知。

来源: 大王叫我来巡山00 于 2022-09-08 19:29:44 [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.

知之为知之 不知为不知。