Students receive safety education for summer in Huihai Primary School of Chengyang District in Qingdao, Shandong Province, on July 5, 2020.

A medical staff teaches students CPR skills in Huihai Primary School of Chengyang District in Qingdao, Shandong Province, on July 5, 2020.

Two first responders teach students how to use life buoy in Huihai Primary School of Chengyang District in Qingdao, Shandong Province, on July 5, 2020.