Ключевые слова: active, activity, architecture, background, blow, bored, building, cement, civil, column, concrete, construction, contractor, drop, engineering, equipment, ground, heavy, home, industrial, industry, load, machine, machinery, material, outdoor, pavement, people, pile, piling, pour, project, section, set, shape, site, soil, stack, stake, steel, strength, strong, structure, transport, truck, underground, unloading, white, work, worker,