Children dance during a performance at a primary school in Cangxian County in north China's Hebei Province, May 31, 2018. People held various activities to observe the International Children's Day across China. (Xinhua/Zhou Yang)
Children and their parents exercise at a gym in Liping County of southwest China's Guizhou Province, May 31, 2018. People held various activities to observe the International Children's Day across China. (Xinhua/Yang Daifu)
Children and their parents exercise at a gym in Liping County of southwest China's Guizhou Province, May 31, 2018. People held various activities to observe the International Children's Day across China. (Xinhua/Yang Daifu)
Students play with a gear model at a primary school in Yantai, east China's Shandong Province, May 31, 2018. People held various activities to observe the International Children's Day across China. (Xinhua/Tang Ke)
A teacher teaches students paper-cutting at a primary school in the Manchu Autonomous County of Fengning in north China's Hebei Province, May 31, 2018. People held various activities to observe the International Children's Day across China. (Xinhua/Liu Huanyu)
A child and her parent exercise at a kindergarten in Rongcheng City, east China's Shandong Province, May 31, 2018. People held various activities to observe the International Children's Day across China. (Xinhua/Lin Haizhen)
Children play basketball at a kindergarten in Tangshan in north China's Hebei Province, May 31, 2018. People held various activities to observe the International Children's Day across China. (Xinhua/Li Lei)
Children play marbles at a primary school in Handan in north China's Hebei Province, May 31, 2018. People held various activities to observe the International Children's Day across China. (Xinhua/Hu Gaolei)
An artist of Ping Opera gives guidance to pupils on their performance at a primary school in Tangshan in north China's Hebei Province, May 31, 2018. People held various activities to observe the International Children's Day across China. (Xinhua/Dong Jun)
Children and medical staff give a performance at the Children's Hospital in Xi'an, capital of northwest China's Shaanxi Province, May 31, 2018. People held various activities to celebrate the International Children's Day across China. (Xinhua/Liu Xiao)
Students attend a charity bazaar in Haikou, capital of south China's Hainan Province, May 31, 2018. People held various activities to celebrate the International Children's Day across China. (Xinhua/Zhao Yingquan)
Students visit Shandong Science and Technology Museum in Jinan, capital of east China's Shandong Province, May 31, 2018. People held various activities to celebrate the International Children's Day across China. (Xinhua/Xu Suhui)
Primary school students perform in Dachong Primary School in Qinzhou, south China's Guangxi Zhuang Autonomous Region, May 31, 2018. People held various activities to celebrate the International Children's Day across China. (Xinhua/Zhang Ailin)
A teacher introduce vegetables to children at a farm in Jiuzhou Town of Guangyang District in Langfang, north China's Hebei Province, May 31, 2018. People held various activities to celebrate the International Children's Day across China. (Xinhua/Li Xiaoguo)
A teacher of a kindergarten makes cinnabar moles on pupils' forehead during a ceremony in Langfang, north China's Hebei Province, May 31, 2018. People held various activities to celebrate the International Children's Day across China. (Xinhua/Wang Xiao)
A girl and her mother pick apricots at a farm in Jiuzhou Town of Guangyang District in Langfang, north China's Hebei Province, May 31, 2018. People held various activities to celebrate the International Children's Day across China. (Xinhua/Li Xiaoguo)
Primary school students perform in Dachong Primary School in Qinzhou, south China's Guangxi Zhuang Autonomous Region, May 31, 2018. People held various activities to celebrate the International Children's Day across China. (Xinhua/Zhang Ailin)