短語詞組短語quantity y discount 數(shù)量折扣Quantity And Discount Information 數(shù)量和折扣信息quantity buying discount [貿(mào)易]批量購買折扣quantity decreased discount 減量折扣Quantity Discount Models 數(shù)量折扣模型quantity discount detail 大量折扣quantity discount policy 價格折扣政策quantity discount pricing 數(shù)量折扣定價 返回 quantity discount