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
Visitors view exhibits on an exhibition presenting children's artworks made of waste materials in Haikou, south China's Hainan Province, Dec. 30, 2018. (Xinhua/Zhou Huimin)
Visitors view exhibits on an exhibition presenting children's artworks made of waste materials in Haikou, south China's Hainan Province, Dec. 30, 2018. (Xinhua/Zhou Huimin)