Ключевые слова: active, activity, arena, artificial, athlete, athletic, background, baseball, challenge, colorful, compete, competition, competitive, concentration, course, curve, direction, dome, empty, event, exercise, field, finish, focus, forward, game, ground, lane, lifestyle, new, outdoor, pattern, perspective, race, racecourse, racetrack, red, run, sport, stadium, start, success, surface, texture, track, winner,