我们先来看看来外对讨价还价这个概念是怎么理解的。
It is not a common practice in Western countries... I have a lot of problems coming to terms with this concept here. It is where you and the seller come from different ends of the price to pay for something. Obviously you want it as cheap as you can and the seller wants to sell it for as much money as they can. It then is a process of negotiating a price that both buyer and seller are willing to accept.
看来讨价还价在西方国家不是很常见的呢，但是我们还是要掌握怎么表达。