XEC “Welfare-class” is a public service club activity organized by the Student Club Support Centre and co-sponsored by the Taicang Branch of the Volunteer Academy. Our activities are based on knowledge lectures, interspersed with small games and interactive sessions, targeting primary school students in Taicang. The XEC students will enter the Taicang Walton Elementary School to talk to the fourth graders about how artificiality can only be used in their lives. The theme is “The Wonderful World of AI”, and a small post-production video will be shot at the activity site. It is hoped that through this activity, the university students can exercise their oral expression ability and enhance their sense of social responsibility. At the same time, it will increase the social influence of XJTLU and plant the seed of studying hard and becoming a university student in the children's hearts.