Ключевые слова: arena, break, clean, cleaner, cleaning, cold, competition, down, drive, driver, driving, equipment, even, figure, frozen, harvester, hockey, ice, iceskating, indoor, indoors, intermission, level, machine, machinery, men, motion, occupation, plane, preliminary, preparation, professional, pursuit, recondition, reconstruct, recreational, reestablish, rehabilitate, renew, restore, resurface, rink, skate, skating, smooth, sport, stadium, surface, vehicle, work,