你好!不知道你说的"第一次写信"是扫描内容,一般的商业信件,如果是要建立业务的信件:
1):说明信息来源.如何获得对方的资料,
We learned from ...that you are interested in ...
We have obtained your name and address from...
Your name and address have been introduced to us by...
Your firm has been kindly recommended to us by...
2):写信的目的. 比如扩大交易,建立业务来往.
3):自我介绍.
4):产品介绍.
5):激励性结束语. 希望对方可以给答复或者采取行动.
