不存在准确的“定数”，但有“设计寿命”

来源: dudaan 于 2024-04-02 05:17:06 [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.