羊毛皮

例句：

1. 1. The woolen sweaters are warm and comfortable.
   羊毛毛衣既温暖又舒适。
2. 2. The sheep are grazing in the field.
   羊在田野里吃草。
3. 3. She used to make clothes from wool.
   她过去常用羊毛制作衣服。