2--I wish I could place a monthly order for a minimum of so cases, introducing your goods to my customers, but your price, $ 100 for a case, is too high in this highly competitive market.

1--I have cut the price the minimum. You know our freshener is a patent product, different from other kinds of fresheners. We could not have quotated it at such a low price if it were not for your past large orders. This price, actually, leaves us with a very small profit.

2--People here desire medium-priced air freshener only. Please carefully consider my proposal, which will lead to a larger business between us.

1--The low price I'm offering you is as low as I can go.

2--Then, I am sorry to say I must regretfully decline your offer and seek quotations for the other suppliers.

1--I'm sorry, Peter. I hope you'll continue to approach us on other occasions if you cannot accept our offer now.

2--Yes. I'll welcome other opportunities to do business with you.

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注解：
 
1.quotation报价   
2.competitive竞争的        
3.regretfully遗憾地

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译文：

1--彼得，希望你能接受我们对空气清新剂的报价。

2--我希望每月最低订购50箱，并把你的货品介绍给我的客户。但现在商品竞争非常激烈，你要的价格——每箱100美元实在太责了。

1--我已经把价格降到最低限度了。你知道我们的清新剂是专利产品，和其他产品不同。如果不是因为你过去大量订货，我们也不会给出那么低的价。事实上，这种价格，对我们来说，利润已经非常小了。

2--当地消费者只需要中等价格的清新剂。请仔细考虑我的建议，它可带动我们之间更大的交易。

1--这是我所能给你的最低价了。

2--那么，我很抱欺，我只能向别的供应商寻求报价。

1--彼得，我很抱歉。虽然你这次不能接受我们的价格，但仍希望以后有机会与你合作。

2--好，希望我们下次有机会合作。