Group 1 - The Shanghai Cooperation Organization Tianjin Summit successfully concluded, highlighting the role of youth volunteers from 10 universities who participated in various tasks during the event [1][11] - A total of 998 youth volunteers were selected from 19,000 applicants, showcasing their professionalism and enthusiasm in roles such as guest reception and logistics [1][11] Group 2 - Tianjin Normal University volunteer Qi Tianzi effectively communicated the traditional craft of Tianjin Zheng's lacquerware to foreign guests, demonstrating cultural confidence and the ability to bridge language barriers [2][5] - The collaborative efforts of volunteers in cultural display roles contributed significantly to the dissemination of Chinese traditional culture during the summit [5] Group 3 - Tianjin Foreign Studies University volunteer Ma Yucong undertook dual responsibilities during the summit, reflecting a family commitment to service, as her parents also participated in various roles [6][7] - The dedication of 235 language service volunteers from Tianjin Foreign Studies University emphasized the importance of using professional knowledge for urban service [7] Group 4 - Nankai University graduate student Su Yuchen showcased advanced technology, including the world's first "dual-modal bionic dexterous hand," during the summit, impressing foreign journalists with its capabilities [8][11] - Su Yuchen's preparation and engagement with foreign guests highlighted the pride in China's scientific achievements and the commitment to advancing research in functional materials [8][11]