Ключевые слова: activity, bulldozer, construction, construction site, digger, dirt, earth, engineering, equipment, excavating, excavation, excavator, gravel, grey, ground, heavy, industrial, industry, large, loader, machine, machinery, mover, outdoor, power, road, road construction, road construction equipment, scoop, shovel, site, technical, tractor, transport, transportation, truck, vehicle, wheel, work, working, yellow,