Ключевые слова: activity, background, bucket, bulldozer, construction, dig, digger, earth, engineering, equipment, excavation, excavator, gravel, ground, heavy, hydraulic, industrial, industry, landscape, loader, machine, machinery, marble, mine, mover, outdoors, power, quarry, road, sand, scenic, shovel, site, sky, soil, stone, sunset, tractor, truck, vehicle, work, yellow,