itf网球:
ITF (International Tennis Federation) is the governing body of world tennis. It is responsible for organizing and regulating tennis tournaments and events at the international level, including the four Grand Slam tournaments, Davis Cup, and Fed Cup. ITF also sets the rules and regulations for tennis and manages the rankings of players. Tennis players who aspire to play at the professional level often start their careers by competing in ITF tournaments.
付饶 网球:
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