Ключевые слова: blind area, build, builder, building, cement, cement mixing, cement worker, concrete, concrete cement, concreting, construction, contractor, equipment, foundation, house, machine, machinery, man, material, metal, metal wheelbarrow, mix, mixer, mixer truck, mixing, mixing machines, mortar, mortar truck, outdoor, paving, pour, pour cement, pouring concrete, pouring wet cement, process foundation, repair, service, street, truck, wet, wheelbarrow, work, work sidewalk, worker, workmen team,