Ключевые слова: above, aeroplane, air contaminant, aircraft, airliner, airplane, aloft, atmosphere, aviation, blue, cloudless, emission, engine, exhaust gases, fast, flight, fly, fog, fumes, height, high, holidays, in flight, jet, journey, mist, object, on move, on the fly, outdoor, outside, passanger plane, plane, pollution, sky, speed, tourism, transport, transportation, travel, trip, vacation, vehicle, voyage, water vapour, white, wings,