petroleumKK [pəˋtroliəm] /pəˈtɹoʊliəm/发音名词1石油、原油The country's economy depends heavily on exports of petroleum.这个国家的经济高度依赖石油出口。2石油产品、石化原料作定语Plastics are made from petroleum products refined in huge plants.塑胶是由大型工厂精炼的石油产品制成的。用这个字练口说→