【正文】
gn your own name, using “Li Ming” Professor Sun, I am writing to extend my gratitude to you—without your help I would not have been a postgraduate student of Applied Mechanics Department of Yale University. Last June, you helped me with no reservation when I applied for Yale University. You wrote a remendation letter for me to Professor W, the dean of the department. You gave me instructions on how to fill the application forms and write the application letters. Whats more, you also taught me