Collective activities and social activities are very useful and necessary for human life. It helps us to integrate into the community of society. Help us learn many good lessons in life as well as in study. Train our physical, willpower as well as our working and studying power. Help cultivate more necessary things for yourself when needed. But such participation is not only good for cultivating knowledge, but also helps us to have many relationships in society, to be loved by many people and to help us when we are in trouble. If our understanding is still limited, don't think that just reading newspapers or watching TV will expand our understanding. That is completely wrong, it is necessary to participate in social activities a lot to expand your understanding and discover many useful things. Not only knowledge, but we can also learn necessary skills in life and society. Participating in these social and collective activities is not only good for ourselves but also promotes a much more advanced civilized society. Helps limit and repel many negative behaviors in society. Therefore, we should regularly participate in collective activities and social activities. To help ourselves gain more skills or broader understanding. Improve self-discipline, gain experience in all fields and life.