My name is Zhen Dong. I graduated with a bachelor's degree from Northwest University. It is a great honor to join Professor Sun's research group as a postgraduate student. In my spare time, I enjoy physical exercise. My life motto is, "Diligence is the path to the mountain of knowledge， hard work is the boat to the endless sea of learning".（书山有路勤为径，学海无涯苦作舟。）