purchase cost的用法和樣例：
例句
- It is show that if the retailer can depress the purchase cost of private brand products under the original wholesale price, the retailer can attack their competitor.
研究結果發(fā)現，若零售商能壓低其私有品牌產(chǎn)品的進(jìn)貨成本在原始的批發(fā)價(jià)之下時(shí)，零售商將有能力反擊其競爭者。
