Ключевые слова: barren, boulder, brown, bulldozer, carbon, cast, chiming, chimney, cliff, coal, copper, country, crag, cultivator, cut, engine, eve, evening, exploit, exploitation, explore, extract, fabric, factory, iron, ironworks, machine, manufacture, metal, mill, mine, night, pit, plant, reflector, rock, sand, smelter, smelting, smoke, soil, spotlight, stack, tailings, tractor, transportation, tunnel, works, yellow,