A virtual robot can help students to study based on a voice recognition system on display at the Summer Davos Forum in Dalian, Northeast China's Liaoning province, Sept 9, 2015. (Photo/China Daily)
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A virtual robot can help students to study based on a voice recognition system on display at the Summer Davos Forum in Dalian, Northeast China's Liaoning province, Sept 9, 2015. (Photo/China Daily)
