(1)信头(Letterhead) 引证号码:(Ref. No) 日期:(Date) (2)信内名址(Inside Address) (3)称呼(Salutation) (4)标题(Caption, or Subject) (5)正文(Body of the Letter) (6)结尾语套语(Complimentary Close) (7)签名(Signature) (8)附件(Enclosure)