時間，金錢，都是成本。

來源: coorslight969 於 2023-07-20 08:37:53 [舊帖] [給我悄悄話] 本文已被閱讀：次

零成本就等於零。

就是啥也沒有。哈哈

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.