“三服务”指的是服务经济、服务社会、服务青年。这是贯穿共青团工作的一条时代特征鲜明的红线，是跨世纪征途中共青团的光荣任务。“四统一”是江泽民总书记在北京大学建校100周年庆祝大会上向全国青年提出的四点希望，即坚持学习科学文化与加强思想修养的统一，坚持学习书本 “Three services” refers to the service economy, social services, youth services. This is a distinctive red line marking the work of the Communist Youth League. It is a glorious task of the Communist Youth League during the course of the new century. The “four unification” is the four-point hope put forward by General Secretary Jiang Zemin to the national youth at the celebration of the 100th anniversary of the founding of Peking University by General Secretary Jiang Zemin, which insists on unifying the study of science and culture with strengthening the ideological accomplishment and insists on studying books