A：I am really interested in buying this television.我非常想买这台电视机。

B：That's so great!很好!

A：How much are you selling it for?这台的价格是多少?

B：This t.v is only $2500.这台电视机是2500美元。

A：You can't be serious.你不会说真的吧。

B：That's how much this t.v costs.这台电视就是这么贵的。

A：That's too expensive for me.对我来说太贵了。

B：This television is of very high quality.这台电视机质量很好。

A：You can't go down on the price.可以再降一点吗?

B：By how much?多少合适呢?

A：I'll buy it for $2000.2000美元我就愿意买了。

B：I'm sorry, but the price is final.抱歉，2500美元已经是最低价了。