Ключевые слова: air, airplane, airport, arrival, asphalt, board, boarding, bulgaria, business, commercial, contemporary, corridor, day, engine, entrance, flying, front, gate, industry, jet, journey, large, loading, luggage, runway, scene, sky, snow, sofia, standing, station, stationary, technology, transport, transportation, travel, traveling, vacations, vehicle, view, waiting, white, winter,