Ключевые слова: acceleration, age, day, daytime, deceleration, developed, drill, fast, flammable, force, former, gulf, handling, hitchhiking, informed, instant, iron, lod, lube, old, old days, open space, outdoors, pant, passenger, railway, railways, roaming, rock, shipping, slowly, speed, stations, steel, stone, summer, swift, the, time, tour, track, traffic, train, training, trains, transport, transportation, transporting, travel, travel destinations, traveling, velocity, walking, warmth,