Ключевые слова: activity, afternoon, background, big, bridge, bucket, build, bulldozer, construction, development, dig, digger, dirt, dredge, earth, engineering, equipment, excavate, excavating, excavation, excavator, grab, ground, heavy, hydraulic, industrial, industry, machine, machinery, orange, outdoor, outdoors, pit, power, river, rocks, rubble, sand, scoop, shovel, site, soil, stones, track, vehicle, water, work, yellow,