Ключевые слова: activity, angle, blue, building, clear, cloud, construction, crane, cylinder, development, dig, digging, dirt, earth, equipment, excavation, excavator, gear, gravel, heap, heavy, hill, horizontal, industry, land, machine, machinery, metal, mining, mover, object, occupation, platform, quarry, rock, rubble, sand, scoop, single, site, sky, track, tractor, transportation, vehicle, view, work, working, yellow,