不饱和 bùbǎohé unsaturated Definitions Defs Origin Strokes Stroke Words Sentences Sents 不饱和脂肪酸 bùbǎohézhīfángsuān unsaturated fatty acid 多元不饱和脂肪酸 duōyuánbùbǎohézhīfángsuān polyunsaturated fatty acid