Chinese swimmer Ning Zetao prepares to compete in the semifinal of Men's 100m freestyle at Rio Olympics in Rio de Janeiro, Brazil, Aug. 9, 2016. Ning ranked the 12th and failed to advance to the final. (Photo: China News Service/Fu Tian)
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Chinese swimmer Ning Zetao prepares to compete in the semifinal of Men's 100m freestyle at Rio Olympics in Rio de Janeiro, Brazil, Aug. 9, 2016. Ning ranked the 12th and failed to advance to the final. (Photo: China News Service/Fu Tian)
