This file photo shows the sunset view of the Rodrigo de Freitas lagoon and the Corcovado Mountain in Rio de Janeiro, Brazil on Jan. 29, 2015. The Rio 2016 Olympic Games will be held from August 5 to 21. (Photo/Xinhua)
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This file photo shows the sunset view of the Rodrigo de Freitas lagoon and the Corcovado Mountain in Rio de Janeiro, Brazil on Jan. 29, 2015. The Rio 2016 Olympic Games will be held from August 5 to 21. (Photo/Xinhua)
