It's too expensive!
The price is so high!
It costs a bit too much!
Can you come down a little bit?
Can't you make it cheaper?
Can I have a discount?
What would be the lowest price?
Can you give me a discount if I buy two of these?
Can the price be less if I pay by cash?
100 dollars，I'll take three of them.
学英文多年，遇到外国人别再只会说how are you 啦，掌握这些英语口语，小长假出游轻松交谈。