greasy wool

例句：

1. 1. The sweater is made from greasy wool.
   这件毛衣是用油腻的羊毛制成的。
2. 2. The old man's coat was made of greasy wool.
   那位老人的外套是用油腻的羊毛做的。
3. 3.The sheep had been grazing on the greasy wool.
   那些羊一直在吃油腻的羊毛。