cap yarn

例句：

1. 1.She was knitting a sweater for her grandson.
   她正在给孙子织一件毛衣。
2. 2.The weaver used the yarn to create beautiful patterns on the fabric.
   这位编织者用纱线在布料上创造出美丽的图案。
3. 3. The yarn is soft and warm, perfect for winter wear.
   这种纱线柔软且温暖，非常适合冬季穿着。