1-- I am really interested in buying this television.

2-- That's great!

1-- How much are you selling it for?

2-- This t.v is $2500.

1-- You can't be serious.

2-- That's how much this t.v costs.

1-- That's too expensive for me.

2-- This television is of very high quality.

1-- You can't go down on the price.

2-- By how much?

1-- I'll buy it for $2000.

2-- I'm sorry, but the price is final.

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注解：

1.television电视机  

2.serious当真的

3.final最终的

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译文：

1--我非常想买这台电视机。

2--很好！

1--这台的价格是多少？

2--这台电视机试2500美元。

1--你不会说真的吧。

2--这台电视就是这么贵的。

1--对我来说太贵了。

2--这天电视机质量很好。

1--可以再降一点吗？

2--多少合适呢？

1--2000美元我就愿意买了。

2--抱歉，2500美元已经是最低价了。