Smile to get discounts in Tmall's unmanned supermarket

 

Israeli scientist Dan Shechtman, the winner of the 2011 Nobel Prize in Chemistry, learns about "smiling to get discounts" function in Alibaba's Tmall unmanned supermarket at the Light of the Internet Expo of the fourth World Internet Conference, also known as Wuzhen Summit, in Wuzhen, East China's Zhejiang province, December 3, 2017. [Photo/IC]

 

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