rú / guǒ / yí / cì / gòu / mǎi / shù / liàng / jiào / dà / gōng / yìng / shāng / tōng / cháng / yǔn / xǔ / kè / hù / yì / gòu

如果一次购买数量较大，供应商通常允许客户议购。

If the purchase quantity is large, suppliers usually allow customers to negotiate the price.