你要論證牛不能運貨就要證明貨沒動，不能說沒測到馬達熱量所以牛不能運貨。人家本來沒有馬達，你上哪兒測熱量？

來源: stonebench 於 2023-01-10 11:57:43 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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