wool fiber

例句：

1. 1. The wool fibers are soft and warm, making them ideal for winter wear.
   羊毛纤维柔软且保暖，非常适合冬季穿着。
2. 2.The wool fibers are also used to make sweaters and coats.
   羊毛纤维还被用来制作毛衣和外套。
3. 3.The wool fibers can be spun into yarn and woven into fabrics.
   羊毛纤维可以被纺成纱线并编织成织物。