Tourists wait in queue in front of the checkout counter to pay for commodities at a duty-free shop in Sanya, South China's Hainan province, Jan. 15, 2014. The volume of sales of free commodities sums up 3.3 billion yuan ($545.82 million) in 2013 on the offshore islands in Hainan province with the volume of customers surpassing 1.1 million. [Photo/Xinhua]
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