polyunsaturated

剑桥词典

Polyunsaturated fat or oil has a chemical structure that does not easily change into cholesterol (= a substance containing a lot of fat that can cause heart disease ) because it contains several double bonds .
（脂肪或油脂）多重不饱和的
polyunsaturated margarine /vegetable oil 多重不饱和黄油／植物油
比较
monounsaturated 返回 polyunsaturated