A：This blouse is a special offer today. You can have it at 10% off the regular price.这件衬衫是今天的特别推荐商品，价钱可以打九折。
B：It's nice, but still too expensive. Can you give me a 20% discount?是不错。但还是太贵了。能打八折吗?
A：No. 10% is my last word.不行，最多打九折。
B：Come on. Let's split the difference, 15%.算了，让我们折中一下，八五折吧。