Ключевые слова: activity, asphalt, backhoe, building, bulldozer, construction, contractor, dig, digger, dirt, dozer, earth, engineer, engineering, equipment, excavate, excavating, excavation, excavator, grader, ground, heavy, hydraulic, industrial, industry, loader, machine, machinery, metal, mine, mover, pavement, pipes, power, road, rock, sand, scoop, shovel, site, soil, technology, tractor, transport, transportation, truck, vehicle, wheel, work, yellow,