purchase commodity的用法和樣例：
例句
- Customers actually vote for products and companies when they make a purchase.
消費者購買(mǎi)商品實(shí)質(zhì)上是在給不同的企業(yè)和產(chǎn)品投票。 - Businesses that purchase merchandise for resale to others are normally exempt from paying sales taxes on their purchases.
購買(mǎi)商品用于轉售的商家通常在購買(mǎi)時(shí)被免除營(yíng)業(yè)稅。
