Ключевые слова: adult, alternative, business, cheerful, confidence, conservation, development, ecology, efficiency, electricity, energy, engineer, environment, environmental, farm, field, generator, hardhat, helmet, hold, industrial, looking, male, manager, men, mill, nature, occupation, one person, outdoors, people, power, quality, renewable, renewable energy, repair, safety, sky, smiling, standing, sustainable, technician, technology, turbine, wind, wind power, wind turbine, windmill, worker, working,