一般英语商业书信的构成可分为：
1。必需部分，即在一般情况下不可缺少的部分，包括
(一)信头(Letter Head)
(二)封内地址(Inside Address)
(三)称呼(Salutation or Greeting)
(四)信的正文(Body of the letter)
(五)结束礼词(Complimentary Close)
(六)签名(Signature)
2。根据实际需要而增加的部分，包括
(a)附件(Enclosure)，简写Enc.
(b)再启(Postscript)，简写P.S.
(c)经办人姓名(Attention Line)
(d)事由(Subject, Heading)
(e)查号或参考编号(Reference No.)
(f)抄送(Carbon Copy Notation)，简写CC.
Feb 1, 2001
Ms. Jenny. li,
(一)信头(Letter Head)
......(No.)......(Street)
......(Town), ......(City), ......(Country)
(二)封内地址(Inside Address)
Dear Jenny. li,
(三)称呼(Salutation or Greeting)
Your report on the planning session held by
the ...... is an excellent summary and brings
to us most encouraging news.
We have decided to postpone the making of any
specific offer for another month. Thank you
for making available to us the information we
needed.
Early in March we will contact you for additional
information and instructions.
(四)信的正文(Body of the letter)
Sincerely yours,
(五)结束礼词(Complimentary Close)
Tony Lao
President
..................
(六)签名(Signature)
