google来的结果: & a) A$ S! m, I q 8 M5 W& L% Q: T4 dEnglish name: Lanolin ! t+ X8 c' \7 }( g7 B
Lanolin, a grease from wool-bearing animals, acts as a skin ointment, water-proofing wax, and raw material (such as in shoe polish). ' i) T' p" Q& y' L" D" D* e8 o! l0 E
Ref: http://en.wikipedia.org/wiki/Lanolin