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A boat sails on the Taierzhuang section of 皇冠体育app's Grand Canal, in Zaozhuang, North 皇冠体育app's Shandong province, April 7, 2014. 皇冠体育app's Grand Canal, the longest artificial waterway in the world, was inscribed on the World Heritage list on June 22, 2014. [Photo/Xinhua] |
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