Photo taken on April 16, 2016 shows a colorful pattern on the road surface of the Jiangsu Horticultural Expo garden in Suzhou, East China's Jiangsu province, April 17, 2016. The 9th Horticultural Exposition of Jiangsu province, including 22 theme gardens and 12 theme pavilions, opens here on Monday. [Photo/Xinhua]
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