Ключевые слова: black, blue, brazier, bunsen, burn, burner, business, butane, circle, civilization, convenience, cook, cooker, cookery, cooking, costly, danger, dark, down, energy, environment, essential, fire, firemen, flame, fuel, gas, heat, hob, home, hot, industry, kitchen, light, living, natural, oil, organic, plasma, propane, refining, ring, temperature, torch,