全文如下:Dear Sir I am writing this letter to thank you for the help you provide in recent days. I am sure more concern is certain to help increase our future cooperation. With sales up,the cost of raw materials has moved up greatly, unfortunately,the labor cost grows too.As for this situation,we have some suggestions, we have to readjust the prices.The prie list should be changed.The upward period has passed, the general trend is downward.Due to the weak market, we considerably hope to increase our cooperation. Welcome to order our prodac.your sincerly, XXX 文章题目应该有提供重点词汇和句型的。一个朋友刚好也要考英语三级,是这个题目。这篇文章还不错,关键词汇和句型都应用的很到位,而已基本上没有语法错误。可供参考 1,关系,关心 concern 2,相当的,非常的 considerably 3,由于,因为 due to 4,不景气的市场 weak market 5,总的趋势 general trend 6,周期,期间 period 7,向上的,上升的 upward 8,情况与建设 situation and suggestions 9,销售增加 sales up 重点巨型: (作文) 1, I am writing this letter to thank you for ...... 2, ....is certain to help increase our future cooperation 3, The cost of raw materials has moved up greatly..... 4, labor cost 5, to readjust prices 6, price list 7, 内容: 一个厂商写给另一个厂商的感谢信,主要是关于原材料涨价的事情