Photo taken on Aug. 2, 2016 shows the Rio Olympic Velodrome in Rio de Janeiro, Brazil. The 2016 Olympic Games is scheduled to open on Aug. 5. (Photo/Xinhua)
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Photo taken on Aug. 2, 2016 shows the Rio Olympic Velodrome in Rio de Janeiro, Brazil. The 2016 Olympic Games is scheduled to open on Aug. 5. (Photo/Xinhua)
