Ключевые слова: activity, background, backhoe, bucket, build, building, bulldozer, construction, development, dig, digger, digging, dirt, earth, engineering, equipment, excavate, excavating, excavation, excavator, field, gravel, ground, heavy, hole, hydraulic, industrial, industry, land, loader, machine, machinery, metal, mine, mover, outdoors, pit, power, road, sand, scoop, shovel, site, soil, tractor, truck, vehicle, work, yellow,