Ключевые слова: beard, career, cave, coal, construction, craftsmanship, determination, dig, endurance, energy, engineering, excavation, experienced, expertise, exploration, geology, grit, hardhat, headlamp, helmet, industry, job, labor, light, metal, miner, mining, patience, perseverance, pickaxe, profession, protective, resilience, resource, rock, rugged, safety, shadows, shaft, skilled, tool, tunnel, underground, worker, working, workwear,