metabolismKK [məˋtæbəˏlɪzəm] /məˈtæbəˌlɪzəm/发音名词1新陈代谢、代谢作用Thyroid hormones play a key role in regulating metabolism.甲状腺素在调节新陈代谢上扮演关键角色。2代谢率、代谢速度口语He can eat anything he wants because of his fast metabolism.他代谢快,想吃什么都可以。用这个字练口说→