Ключевые слова: background, basic, blue, bluecollar, climbing, competent, construction, doorway, drill, electric, electrical, electricity, employed, employment, energy, engineer, engineering, finishing, framing, height, high, house, industrial, industry, interior, job, labor, labourer, line, lumber, male, man, manual, metal, metallic, network, phone, pole, power, safety, sky, steel, structure, technology, tower, transmission, voltage, wire, work, worker,