jiǎngjià bù zhǐshì yādī jiàgé, yě shì nòng qīngchǔ zìjǐ dàodǐ zài mǎi shénme

讲价不只是压低价格，也是弄清楚自己到底在买什么。

Bargaining is not just about lowering the price; it's also about figuring out what you are actually buying.