我是EE出身，這種數學課對我來說有點像天書了

來源: 羊爸兔媽於 2024-09-05 09:23:31 [舊帖] [給我悄悄話] 本文已被閱讀：次

我明天坐早班火車去上海，沒有目標，打算在上海亂逛.

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