BEC写作指导：商务信函的常见行文逻辑
商务信函共通的特征是什么?
和任何一篇普通文章一样：开头、中间和结尾。但是由于撰写的目的不同，每个部分的内容也会因此发生改变。
下面7种类型来自《Powerful Business Writing》，供大家参考。
其中B代表开头(Beginning)，M代表中间(Middle)，E代表结尾(End)。
1. Information or acceptance 提供信息、表示接受
B:引入话题
M:讨论或解释
E: 表达你希望对方采取的行动
2. Sales or persuasion 销售、说服对方
B:通过提出一个理念或提供一项产品服务来吸引对方注意
M:使用一系列事实，晓之以理、动之以情
E: 呼吁对方
3. Request 请求
B:说明你的需求
M:描述你需求的原因
E:请求帮助并表示感谢
4. Complain 抱怨
B:说明问题出处
M:提供充足的细节，以便对方帮助
E:表达你希望对方采取的行动
5. Rejection 拒绝
B:对对方表示同情，拉近关系
M:将拒绝委婉提出，并且放在中间。说明拒绝的原因时也要给对方留情面
E:强调对于该局面的积极面
6. Collection 征收
B:有礼貌地表达，提供对方未付款的信息
M:有礼貌地要求对方及时付款
E:表达如果付款不能及时到账时你将采取的行动，并随信附送回信信封
7. Goodwill 示好
B:表达感谢、赞美、祝贺、同情，或者邀请
M:提供非正式的较私人的信息
E:以热情的方式结尾
一些常用的连接词~
大逻辑清楚了，接下来是信函中的小逻辑。
连接词是信函中不可或缺的成分，将信函连接成完整的一体。
| 目的 | 连接词 |
| To add an idea | Also, and, besides, furthermore, moreover, next, too, as well as, in addition, again |
| To summarize | In brief, on the whole, in short, in sum, to sum up |
| To enumerate<script language="Javascript">GetWord("enumerate");</script> | First, second, third, last |
| To clarify | Actually, in other words, clearly |
| To illustrate | For instance, for example (e.g.), this is (i.e.) |
| To compare | Also, similarly, likewise, as well as |
| To contrast | Although, even though, but, however, on the contrary, on the other hand, yet, in contrast |
| To emphasize | Certainly, most of all, in fact, of course, in any event |
| To make conditional | If, unless, until, when, even though |
| To show cause and effect | As a result, so, therefore, consequently, accordingly |
| To show results | As a result, therefore, so, hence |
| To reverser a thought | But, yet, on the contrary, regardless, nevertheless |
| To indicate time or sequence | Formerly, previously, meanwhile, before, after, until now, at the same time, later, during |
当然不仅局限于单词，很多句子和短语也可以作为连接过渡使用。
如：
• “That brings us to the next step, which is …”
• “Now that we’ve settled that problem, let’s look at …”
• “Unfortunately, in this case, we won’t be able to …”
• “In addition to budget constraints, there’s another matter we have to discuss.”
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