基本解释[經濟學]關稅折釦英汉例句雙語例句As an appendix, chapter six presents the discount model of main tariff packages in fixed network carries.第六章以附錄的形式介紹了固網運營商主流促銷套餐的折釦率測算模型。tariff discount更多例句专业释义經濟學關稅折釦