【正确答案】Dear Professor Chen,
I am writing this letter to express my sincere thanks to you—without your srutiny of research papers for me all these years, I couldn't have published so many influential international journals, which have been included in SCI, EI and ISTP, neither could I have been promoted to a full professor of our university.
Dear professor, it's you who have always been a great help to my life-long career— scientific research. Your profound theoretical knowledge and extraordinary language skill have always been what I rely on. That's why I have again and again asked you rather than anyone else to srutinize my manuscripts. Franky speaking, I have learned a great deal from the mistakes corrected by you. I believe in the statement that writing means hard work, correcting mistakes means more.
This September I'll go to New York University to be a visiting scholar. Next September, I'll come back to our motherland. During my stay in the United States, I can collect for you some useful information related to your scientific research if you wish. I'll keep in touch with you as frequently as before.