USA in 4D showcases at Expo
A family uses the touch-screen machine to get some information in the USA Pavilion at the Shanghai Expo Garden, Oct 19, 2010. [Photo/Xinhua]
A visitor enjoys the touch-screen wall which showcases American business and technology, as well as culture in the USA Pavilion at the Shanghai Expo Garden, Oct 19, 2010. [Photo/Xinhua]
Source: expo2010.cn
Editor: Xu Xinlei
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