Ключевые слова: activity, apartment, architecture, background, blue, builder, building, built, business, city, concrete, construct, constructing, construction, constructor, crane, development, engineer, engineering, equipment, foreman, frame, heavy, high, house, housing, industrial, industry, job, machinery, male, man, occupation, people, profession, project, safety, scaffolding, silhouette, site, steel, structure, tall, technology, tool, tower, urban, work, worker, working,