Dear Sir or Madam,
My name is XX, a Chinese graduate eager to pursue postgraduate study on XX(major) at XX University in Germany. I am writing to elaborate upon my strong motivation for the desired study program as well as its great significance for my future professional life.
...
Thank you very much for your time and consideration of my visa application. I look forward to hearing a favorable response from you.
Yours Sincerely,
手写签名(中文+拼音)
记得两份动机信都要手写签名呀。