Ключевые слова: background, bank, battery, climate, coin, colour, comfort, concept, control, domestic, economy, energy, expense, female, finance, hand, handle, heat, heating, home, house, investment, modern, money, object, optimize, pay, piggy, pink, putting, radiator, regulator, room, save, savings, standing, system, temperature, thermal, thermometer, thermostat, wall, warm, white, winter,