Dốt quá cũng khổ,đọc tiếng Anh cứ mơ mơ màng màng,hiểu nhưng chẳng biết ghi sao cho đúng ... Có ai truỳên bí kiếp dịch ko ? :((

Moonly. http://en.wikipedia.org/wiki/Cetyl_alcohol

A: Cetyl alcohol is used in the cosmetic industry as a surfactant in shampoos, or as an emollient, emulsifier or thickening agent in the manufacture of skin creams and lotions.[4] It is also employed as a lubricant for nuts and bolts. A: ??????????? cái j thế A: http://en.wikipedia.org/wiki/Stearyl_alcohol