polyunsaturates/ˌpɑː.li.ʌnˈsætʃ.ə.reɪ.t̬ɪd/名词多重不饱和脂肪酸This margarine is high in polyunsaturates.这种人造黄油富含多重不饱和脂肪酸。想跟读,去练习