譬如文中物理學"力"的概念，是虚，但并不妄。

来源: 中间小谢于 2022-03-29 11:06:09 [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.