再舉一個例子。你從店裏，賣了100塊的衣服，店裏從中間商哪裏買的這個衣服，八十，中間商從工廠買，花了50塊。

來源: 蔣聞銘於 2026-04-16 13:21:11 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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