I think the class committee is very important, because I am in the student union, you are mainly responsible for some activities and so on, but as a class committee, many important things need to be managed, such as students' files, grades and so on, many of which are related to whether you can graduate or not. The class committee needs to fully manage the people in its own class. It will be very busy, but it is also very important and indispensable. You can also talk to your teacher about your class life.