polyunsaturated
/ˌpɔlɪʌnˈsætʃəreɪtɪd; ˌpɑlɪʌn`sætʃəˌretɪd/ adj
(of many vegetable and some animal fats) having a chemical structure which does not help the harmful formation of cholesterol in the blood （指许多植物脂肪和一些动物脂肪）含有多重不饱和化合物的
Polyunsaturated margarine is very popular now. 含有多重不饱和化合物的人造黄油现已很受欢迎. Cf 参看 saturated 2.