假定你是李华，打算在即将到来的暑假中前往北京旅行，请根据下图提示给你的英国笔友 David写一封邮件，分享你的旅行计划。

注意：

1. 词数100左右；

2. 可适当增加细节，以使行文连贯；

3. 文中不能出现真实姓名、学校等信息。

Dear David,

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Li Hua