Ключевые слова: activity, background, backhoe, blue, bucket, build, building, bulldozer, construction, crawler, dig, digger, dirt, dredger, earth, earthmover, engineering, equipment, excavate, excavation, excavator, gravel, ground, heavy, hydraulic, industrial, industry, land, loader, loading, machine, machinery, mining, mover, outdoor, outdoors, power, quarry, road, sand, scoop, shovel, site, sky, soil, tractor, truck, vehicle, work, yellow,