AThis blouse is a special offer today. You can have it at 10% off the regular price.
    這件襯衫是今天的特別推薦商品，價錢可以打九折。
    BIt's nice, but still too expensive. Can you give me a 20% discount?
    是不錯。但還是太貴了。能打八折嗎？
    ANo. 10% is my last word.
    不行，最多打九折。
    BCome on. Let's split the difference, 15%.
    算了，讓我們折中一下，八五折吧。