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Volunteers plant a tree in Suzhou City, east China's Jiangsu Province, March 12, 2019. Tree Planting Day, also known as Arbor Day, falls on Tuesday. (Xinhua/Hang Xingwei)
Volunteers plant a tree in Suzhou City, east China's Jiangsu Province, March 12, 2019. Tree Planting Day, also known as Arbor Day, falls on Tuesday. (Xinhua/Hang Xingwei)