本文讨论在外贸函电写作中应该注意的写作特点的问题。除了正确地掌握外贸函电的格式 ,语法和标点符号外 ,在外贸函电写作中还要注意外贸函电的特点 :即清楚 ( clarity)、简洁 ( conciseness)和礼貌 ( courtesy)。这三个原则被简称为三“C”原则。为体现该写作原则 ,应正确地选择适宜的词和相应的句子结构。 This article discusses the characteristics of writing that should be noted in the writing of foreign trade letters. In addition to correctly grasping the format, grammar and punctuation marks of foreign trade correspondences, we should also pay attention to the features of foreign trade correspondence in the writing of foreign trade correspondences: clarity, conciseness and courtesy. These three principles are referred to simply as the three “C” principles. In order to reflect the principle of writing, we should select the appropriate words and corresponding sentence structure correctly.