(190423) -- BUDAPEST, April 23, 2019 (Xinhua) -- Ma Long/Wang Chuqin (L) of China compete during the men's doubles round of 64 match with Tomas Polansky/Pavel Sirucek of the Czech Republic at 2019 ITTF World Table Tennis Championships in Budapest, Hungary on April 22, 2019. (Xinhua/Han Yan)