It remains unknown which country will host the international tennis tournament.现在仍不知道哪个国家主办国际网球锦标赛。She is a popular figure on the international tennis circuit.她是国际网球巡回赛中的当红人物。The list of competitors reads like a who's who of international tennis players.参赛者名单读上去简直就是国际网球选手名人录。