American spun yarn

例句：

1. 1. This yarn is perfect for making sweaters, as it's soft and warm.
   这种纱线非常适合做毛衣，因为它柔软且保暖。
2. 2. The yarn is so fine that it can be used to make delicate lacework.
   这种纱线非常细，可以用来制作精美的蕾丝。
3. 3. The yarn is made from a blend of wool and silk, providing warmth and comfort.
   这种纱线是由羊毛和丝绸混合制成的，既温暖又舒适。