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