目前,商务信函广泛应用于业务交流,它除了作为一种商业贸易的记录文件之外,更重要的是它具有促进贸易成功的作用。商业书信与一般的书信写法不同,它不需要华丽的词藻,深奥的句子,但必须遵循以下三个主要原则:内容清晰,形式正确,以及善意原则.善意原则尤其重要,因为善意原则有利于建立成功的商业关系,促成商务谈判的达成,从而给贸易双方带来益处。 At present, business correspondences are widely used in business exchanges. Apart from being a kind of business and trade record document, more importantly, it has the function of promoting trade success. Unlike ordinary epistolary writing, business correspondence does not require gorgeous rhetoric or esoteric sentences, but it has to follow three main principles: clear content, correct form, and goodwill doctrine. The principle of goodwill is especially important because the doctrine of goodwill facilitates the establishment of Successful business relations lead to the conclusion of business negotiations, thus bringing benefits to both parties.