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Top Photos of the Year 2016 - Human Interest (ZT)
![People demonstrate a home-made "smog cannon" which fires cannonballs made of "water and tobacco tar" to remind people the importance of protecting environment, in Xiangyang, Hubei province, Dec. 27, 2016.](https://gdb.voanews.com/71B50D2A-568B-4A48-85C6-23FEEB2702B1_w987_s_s.jpg)
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People demonstrate a home-made "smog cannon" which fires cannonballs made of "water and tobacco tar" to remind people the importance of protecting environment, in Xiangyang, Hubei province, Dec. 27, 2016.
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