3.私人介绍信
要点提示:用语较随便，介绍某人去结识某人。被介绍人的性格、为人和学业等情况都应作一个具体简要的介绍，以便让收信人对被介绍者首先有一个感官认识和大概印象。
Model:
A Private Letter of Introduction(私人介绍信)
Dear Prof.John:
This is to introduce Bill to you，whose parents are both my good friends.He is now going to Zhuhai and will spend his summer holiday there，doing some research work on the marine environment at Zhuhai University.He hopes to obtain your advice and guidance in theoretical studies and laboratory tests.Bill has amiable manners and good study style，always respectful and modest.I＇m sure that you would be pleased to meet and help him.
It is possible and convenient for you if he comes to see you once a week?Many thanks for the trouble you will have to take for Bill.
Yours sincerely，
Li Feiyang
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