Ключевые слова: background, banknote, bill, budget, business, cable, cash, concept, connection, consumption, cord, cost, currency, current, economy, efficiency, electric, electrical, electricity, empire, energy, environment, euro, european, expense, expensive, finance, flat, home, increase, industry, lay, money, outlet, overhead, pay, plug, power, price, save, saving, socket, supply, technology, top, view, wire, yellow,