1.You should know that the price of same product should be fixed differently in different market, but yours is definitely too high in our market.

您应该知道同样产品因市场不同，定价应有不同。按照我们这里的市场行情，你们的价格也太高了。

2.Your quotation of sewing machines is too high to be acceptable.

你们的缝纫机价格高的让人无法接受。

3.We regret to say that your price is on the high side, we do not think there is any possibility of business unless you cut your price by 20%.

很遗憾，你方的价格偏高，如果你方不能降价20%，生意根本没办法谈成。

4.Your price has gone up so rapidly that it would be impossible for us to push any sales at such a price.

你方的价格涨得太快，我方根本无法以如此高价销售你方产品。

5.We regret to say there is no possibility of business because of your high price.

很遗憾，因你方的价格也太高，根本没可能达成交易。