Ключевые слова: background, bright, brightly, bulb, business, concept, conservation, control, creativity, design, discovery, draw, drawing, earth, eco, ecology, economical, electricity, energy, environment, equipment, finance, fuel, glass, glowing, hand, idea, image, imagination, innovation, inspiration, intelligence, invention, kilowatt, light, line, man, nature, object, power, science, sky, solution, success, supply, symbol, technology, thinking, watt, white,