Ключевые слова: activity, adult, architect, beautiful, building, built, business, busy, civil, concrete, construction, cut, day, developer, engineer, equipment, foreman, grinding, hard, hat, helmet, industrial, inspection, instrument, job, lighting, machine, male, man, manager, natural, occupation, one, outdoors, outside, person, plan, precision, professional, project, safety, site, steel, structure, technology, tool, uniform, urban, worker, young,