Smog changes color of high-speed train
chinadaily.com.cn    |     2017-01-05 08:12
 
 
 
 
 

 
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 Fingermarks can be seen clearly as a railway staff member wipes the train with his fingertips at Beijing South Railway Station on Jan 4, 2017. The train has been running through the smog. [Photo/IC] 
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