细毛

例句：

1. 1. The cat has a fine coat of fur.
   这只猫有一层漂亮的毛。
2. 2. The baby's soft down is so soft and fluffy.
   婴儿的细毛软软的，很蓬松。
3. 3. The dog has a thick coat of fur that keeps it warm in the winter.
   这只狗有厚厚的毛，冬天保暖。