Ключевые слова: background, backhoe, building, bulldozer, cement, concrete, construction, contractor, development, digger, digging, drain, earth, earthmoving, engineering, equipment, excavation, excavator, foreman, ground, group, industrial, industry, land, loader, machine, machinery, pipe, pipes, plumber, plumbing, repair, road, safety, sand, scoop, shovel, site, sky, soil, system, team, technology, trench, tube, uniform, valve, water, work, worker,