私人介绍信 April 26,2006 Dear Barbara, This letter will introduce my best friend Mary Brown of whom you've often heard me mention.She is going to be in Washington D.C.next monthto lecture.I want very much to have her meet you there. And this seems like an excellent chance for you to meet each other.I think both of you will have a lot in common.So far as I know,you both are interested in modern literature.Once you meet her,you will really enjoy hercompany.Any kindness to her will be duly appreciated by me. Yours affectionately, (Signature) Susan