Ключевые слова: big, bucket, car, career, coal, construction, copper, digger, dirt, dump, earth, empty, energy, engineering, environment, equipment, giant, gold, ground, heavy, huge, image, industry, iron, large, lift, machine, machinery, metal, mine, mineral, monster, open, ore, pit, production, quarry, shovel, sky, tractor, transport, truck, vehicle, wagon, wheel, work, yellow,