Ключевые слова: activity, arena, athlete, athletic, battle, black, boxing, bright, challenge, champion, combat, competition, competitive, concept, corner, dark, design, determination, dramatic, empty, equipment, event, exercise, exercising, fight, fit, fitness, game, gym, health, healthy, indoor, lifestyle, light, match, muscular, nobody, platform, power, ring, rope, sport, spotlight, stadium, stage, strength, string, strong, training, workout,