In my spare time, I choose to watch American TV series, listen to music, do exercises and other activities to relax myself. Of course, these activities are beneficial to my postgraduate life while relaxing my body and mind. For example, when I watch America TV series, my English level is also is also gradually improved. Appropriate sports make me try my best at every moment.This is all for my self-introdition. If I am lucky enough to pass second-round examination. I will devote all myself to the future researching. Thank you for your attention.