With the coming of the new year, we were older than before. The AILemon blog, accompanied by everyone and me, passed the second year. In new year, I also become a student who is about to graduate. Like everyone else, from the beginning of school, with a dream of future, to a person who has learned some knowledge, has expertise in technology, and has insights into society. Looking back on the past year, look at our progress of the past year, the knowledge we have learned, the things we have done, we will know whether we are satisfied with our performance during this time.