Ключевые слова: action, activity, athlete, athletic, barrier, business, businessman, career, challenge, competition, competitive, competitor, complexity, computer, concept, contest, difficult, difficulty, fast, finance, job, jump, loser, man, manager, motion, move, obstacle, overcoming, person, problem, race, road, run, skipping, speed, steeplechase, stress, stressful, success, successful, suit, technology, tired, track, urgent, victory, work,