问题补充：
假定你是李华，准备在暑假赴美国进行短期旅行。请你用英语给美国网友Tom写一封邮件。内容包括：
1.写信目的;
2.旅行要求（体验生活，参观名校等）。
注意：
1﹒词数100左右;
2﹒可以适当增加细节，以使行文连贯。
答案：
Dear Tom，
How is everything going？
These days I’m considering a brief trip to your country in the coming summer holiday. Could you please give me some practical advice to make my trip enjoyable and worthwhile？ The following is my expectation and I badly need your advice.
Firstly， I’d like to take the chance to expose myself to the native life as much as possible. Besides， it will be better if the trip covers those world-famous universities across the country. Last but not least， I hope the trip will be within my budget as a student.
Many thanks！
Yours，
Li Hua
