google来的结果: + ?+ c* O, D: e& z! u* z D g% r* Q
English name: Lanolin % j$ c( o# k3 m* o. H- q9 t
Lanolin, a grease from wool-bearing animals, acts as a skin ointment, water-proofing wax, and raw material (such as in shoe polish). ( F. q% s' d' U8 A" n; ^) @1 P! E: w8 S/ j \4 X
Ref: http://en.wikipedia.org/wiki/Lanolin