My name is xxx , from Yancheng City, Jiangsu Province. I graduated from xxx in Building Environment and Energy Application Engineering. After graduation, I worked as a process assistant engineer in a semiconductor company during this time， learned some knowledge about dust free laboratory maintenance and semiconductor device manufacturing. However, I feel that as an ordinary engineering undergraduate, my job is only to pour water into a cup prepared by others. When I was a child, my dream was to become a scientist, and now this has not changed. I want to engage in research in natural sciences and expand the boundaries of human knowledge, so I crossed the chemistry major and have a strong desire to further my study. I have two hobbies; one is eating and the other is sleeping. People spend most of their time eating and sleeping. As long as I like them, I can keep myself happy often. At the same time, healthy diet and adequate sleep are important guarantees for efficient work. That's all. Thank you for your attention.