It is true that being terse is one of the most important principles in writing.
精炼是写作最重要的原则之一，此话不假。
I believe that the following three aspects are very important: to master foreign trade English, to familiarity with foreign trade practice and to grasp the "7c" writing principles.
笔者认为应注意三个方面，即精通外贸英语、通晓外贸业务知识和熟练应用“7c”写作原则。
According to these principles, first of all, it is important to have the right attitude towards the general features of foreign trade correspondence writing.
根据这些原则，在外贸函电写作中，首先对外贸英语函电写作总体特点要有正确的认识；
This paper Outlines important principles of document design in the field of "writing study" and possible access points of subjects and sums up the results of the study.
本文概述了“写作研究”领域的文献设计的一些重要原则。它勾画出可能的主题检索点并指出所进行的研究。
Secondly, it further elaborates the most important principles which enable Email writer to reach a high level of writing and achieve high quality of communication.
然后进一步阐述了邮件写作的另两个更重要的原则-合作原则及礼貌原则，这两个原则不但能进一步提高写作技巧，而且有助于实现更高效的沟通；
Secondly, it further elaborates the most important principles which enable Email writer to reach a high level of writing and achieve high quality of communication.
然后进一步阐述了邮件写作的另两个更重要的原则-合作原则及礼貌原则，这两个原则不但能进一步提高写作技巧，而且有助于实现更高效的沟通；
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