China's Fang Bo (R) and Germany's Petrissa Solja celebrate victory against Ovidiu Ionescu and Bernadette Szocs of Romania during the mix doubles round of 32 match at the 2017 World Table Tennis Championships in Dusseldorf, Germany, on May 30, 2017. Fang Bo and Petrissa Solja won 4-0. (Xinhua/Tao Xi Yi)