Ключевые слова: activity, building, civil, colors, concrete, construction, craftsmanship, development, engineering, environment, foundation, hard, hats, heavy, helmets, industry, infrastructure, labor, laborers, machinery, masonry, materials, overhead, pouring, productivity, progress, rebar, renovation, rustic, safety, site, skill, structure, teamwork, tools, urban, view, work, workers, yellow,