這樣的話，成本幾乎為零。對下保護少。我本以為朝下定個更低的價位，成本也低一點。

來源: 桃花源裏人家於 2025-05-26 20:51:24 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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