商务英语写作中的销售信函的写作非常重要,这类信函的写作能力直接影响公司的销售业绩、与潜在买方的业务关系、公司的整体形象和声誉等。本文主要讨论销售信函写作时需要遵守的原则、写作的四个步骤和关键短语等,以期让读者认识到销售信函写作的重要性,并能快速掌握这类商务信函的写作技巧。 The writing of sales letters in Business English writing is very important. The writing ability of such letters directly affects the company’s sales performance, business relationships with potential buyers, the company’s overall image and reputation. This article mainly discusses the principles to be followed when writing sales letters, the four steps of writing, and the key phrases in order to make readers realize the importance of sales letter writing and quickly grasp the writing skills of such business letters.