Dear Mr. Whitman,

尊敬的惠特曼先生，

I am writing the letter to extend my heartfelt gratitude to you for the hospitality you offer me and also for the very warm and friendly way in which you receive me.

我写信是为了衷心感谢您给予我的热情接接待，同事感谢您接待我时非常盛情友好的方式。

During the Sino-American culture exchange program in the United States of America,

在赴美的中美文化交流项目期间，

I feel obliged to you for the selfless assistance you render me.

非常感谢您给予我无私的帮助。

I expecially appreciate your organizing the information according to the items on the agenda.

您能按照日程安排组织信息，我尤为感激。

It was kind and generous for you to do all these for me,

您真是太好了，为我做了这么多，

and I appreciate it more than I can say.

我感激不尽。

Finally, I sincerely welcome you to visit China at your convenience and I do hope to have the opportunity of rewarding you in the forthcoming future.

最后，我真诚地欢迎您在方便的时候访问中国，并希望在不久的将来有机会回报您。

Yours sincerely, Zhang Wei

您真诚的，张伟