Ключевые слова: action, africa, african, architect, australia, builder, building, civil, construction, construction worker, contractor, degree, development, digging, dirt, diverse, diversity, duty, earth, employee, engineer, engineering, equipment, examining, factory, foreman, guy, hard, hard hat, hardhat, hat, heavy, helmet, industrial, industry, machinery, man, manager, mine, miner, mining, mountain, occupation, person, quarry, safety, site, uniform, work, working,