Ключевые слова: back light, builder, building, busy, china, concrete, construction, construction site, construction worker, constructionworker, day, development, equipment, formwork, frame, group, hat, helmet, house, housing, industrial, industry, infrastructure, installation, labourer, large, male, manual worker, men, occupation, people, profession, scaffold, scaffolding, site, steel, sunlight, tool, worker, working,