Ключевые слова: car, career, charcoal, coal, coaling, crater, dig, dredging, dump, ecology, empty, energy, environment, equipment, excavation, exploitation, extracting, full, ground, heavy, huge, inducstry, industrial, large, loaded, machinery, metal, mine, mineral, mining, move, moving, open, ore, pit, power, produce, production, quarry, removing, size, sky, trucks, vehicle, wheel, work, yellow,