Ключевые слова: aeroplane, air, aircraft, airline, airliner, airlines, airplane, airplanes, atmosphere, aviation, blue, bright, clear, cloudless, condensation, contrail, contrails, daylight, diagonal, engine, engines, flight, fly, heaven, high, jet, journey, line, motion, move, outdoor, parallel, parallel lines, passenger, plane, sky, speed, stream, sunny, tourism, trace, track, trail, transport, transportation, travel, two, vapor, weather, white,