Ключевые слова: accounting, background, bank, banknotes, bill, budget, bulb, business, ceramic, closeup, concept, conservation, consumption, cost, dollar, economical, economy, efficiency, electric, electrical, electricity, energy, expense, finance, financial, house, illumination, invention, investment, life, light, model, object, pay, piggy, piggybank, power, price, profit, red, safe, save, saving, savings, supply, tariff, tax, technology, wealth,