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 Visitors line up to visit the UN Pavilion at Expo Park in Shanghai, July 4, 2010. With the theme "One Earth, One UN," the pavilion's main features are about the world's sustainable development, climate change and urban management. [Photo/Xinhua] |
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 A girl visits the UN Pavilion at Expo Park in Shanghai, July 4, 2010. [Photo/Xinhua] |
