1). 讲座目的及内容。

2). 讲座的时间及地点。

3). 邀请对方参加的原因及对方的意向。

注意：可增加细节,使结构完整,词数不少于100。开头和结尾已给出，不计入总词数。

Dear Peterson,

    Our school is planning to hold

    I am looking forward to your reply.

                                                                                                                                                    Yours,

                                                                                                                                                    Li Hua