主要是由多种脂肪酸甘油脂组成的混合物，含有少量但很重要的脂溶性维生素a和d。

It is principally a mixture of the glycerides (see glycerol) of many fatty acids, But its minor constituents, the fat-soluble vitamin a and vitamin d, give it its importance.

youdao

主要是由多种脂肪酸甘油脂组成的混合物，含有少量但很重要的脂溶性维生素a和d。

It is principally a mixture of the glycerides (see glycerol) of many fatty acids, But its minor constituents, the fat-soluble vitamin a and vitamin d, give it its importance.

youdao