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Children perform during an activity to greet the International Children's Day in Shijiazhuang, capital of north China's Hebei Province, May 30, 2019. (Xinhua/Zhang Xiaofeng)
Children perform during an activity to greet the International Children's Day in Shijiazhuang, capital of north China's Hebei Province, May 30, 2019. (Xinhua/Zhang Xiaofeng)