Ключевые слова: ace, activity, athletics, background, balance, balancing, ball, close, compete, competition, concept, court, equipment, exercise, fitness, fun, game, grass, green, health, hit, leisure, lifestyle, line, match, net, new, object, open, outdoor, outside, play, player, professional, racket, recreation, red, serve, service, set, slam, sport, summer, tennis, tournament, training, white, win, yellow,