Ключевые слова: aeroplane, agriculture, air, aircraft, airliner, airplane, airport, application, aviation, chemicals, clear, control, countryside, crop, dangerous, environment, environmental, equipment, farm, farming, fertilizer, field, flight, fly, green, herbicide, industry, jet, landscape, low, machinery, outdoors, piloting, plane, plants, professional, rural, sky, spray, sprayer, spraying, substance, summer, technology, toxic, transportation, travel, trees, wings, work,