Children show greeting cards made to mark the World Hello Day which falls on Nov. 21 annually at a center primary school at Yangguantun Township of Chiping County, east China's Shandong Province, Nov. 20, 2018. (Xinhua/Zhao Yuguo)
Chinese kids greet World Hello Day
Source: Xinhua| 2018-11-20 20:02:03|Editor: Liangyu
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