Ключевые слова: aeroplane, air, aircraft, airliner, airplane, atmosphere, aviation, azure, background, blue, clear, commercial, condensation, contrail, course, diagonal, direction, engine, fast, flight, fly, free, freedom, heaven, height, high, jet, journey, line, liner, motion, move, plane, route, sky, smoke, space, speed, supersonic, tourism, trace, track, trail, transport, transportation, travel, vapor, weather, white, wing,