Tech is changing people's lives in China
    
        
    
      
    
      
    
        
          
          chinadaily.com.cn |
          Updated: 2021-01-21 16:38
          
          
          
          
        


        
      
    
      
    
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   The screen shows how to check out by using machine on a shopping trolley in a supermarket in Xi'an, Northwest China's Shaanxi province, on March 25, 2020. [Photo/IC] 
 
     

     

        
    

        
        
      
    
        
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