2--Our price will be not less than $5000.
 
1-- Your price is higher than I expected. Could you give us a little discount?
 
2-- This is already our best price.
 
1-- But the price is always negotiable and you should consider our quantity of order.
 
2-- Well,what would you suggest?
 
1-- Could you make it $ 4500"?
 
2-- I'm afraid that there is no room to negotiate the price. This is the best price we can quote.
 
1-- Can we meet each other half way？
 
2-- What do you mean?
 
1-- Let's close the deal at $4800，OK?
 
2-- You drive a hard bargain ! OK，that's a deal.
 
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注解：
 
1.considering考虑到  
2.discount折扣    
3.negotiable 可协商的
 
===================================
译文：
 
1--我们正考虑订购200台电脑，但不知贵方的给出的价格是多少？
2--$ 5000 一台大概是我们能出的最低价格。
1--价格比我想象中要高。能给我们打点折吗?
2--这已经是我们最优惠的价格
1--可是价格总是可以商量的嘛，而且你们应该要考虑我们的订货数量。
2--好吧，那你们觉得什么价格合适呢?
1-- 能否把价格订在每台$4500?
2-- 恐怕价格上已经没有商量的余地了，这是我们最低的报价。
1-- 能折衷一下吗?
2--什么意思?
1--让我们以每台$ 4800敲定这桩生意，好吗?
2--你真会讨价还价！好吧，就这么定了。