jiǎng jià tán dào zuì hòu, rú guǒ yǒu tè shū yuē dìng, zuì hǎo xiě jìn dìng dān bèi zhù

讲价谈到最后，如果有特殊约定，最好写进订单备注。

At the end of a negotiation, if there are special agreements, it's best to write them in the order notes.