Ключевые слова: athletic, balance, ball, blue, blue tone, boundary, calm, challenge, competition, concentration, cool, court, equipment, focus, game, hobby, leisure, lodged, match, match point, net, netting, peaceful, play, precision, racket sports, relaxation, rest, restful, serene, sport, sportive, sports equipment, still, still life, tennis, tennis ball, tennis court, tennis match, tension, texture, tranquility,