Ключевые слова: background, beautiful, black, blue, busy, color, construction, drilling, energy, equipment, extraction, features, gas, gray, heavy, homework, in the evening, industry, jack, labor, liquid, money, oil, oil fields, pipe, power, process, pump, pumping unit, raw, red, running, silhouette, sky, steel, store, strength, sun, tall, technology, the fuel, towers, wealth, work well,