Ключевые слова: activity, athlete, background, ball, blue, compete, competition, concept, cord, court, defeat, defeated, detail, equipment, exercise, failure, fault, field, fitness, fun, game, green, health, lifestyle, lose, losing, match, net, nobody, object, open, outdoor, players, point, professional, racket, recreation, rope, serve, set, sky, space, sport, stop, tennis, tennisball, touching, tournament, win, yellow,