A woman stands in front of a green screen at the big data expo in Guiyang, Southwest China's Guizhou province on May 25, 2017. Using AR technology, the background is transformed on screen. (Photo/chinadaily.com.cn)
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A woman stands in front of a green screen at the big data expo in Guiyang, Southwest China's Guizhou province on May 25, 2017. Using AR technology, the background is transformed on screen. (Photo/chinadaily.com.cn)
