pilus

例句：

1. 1. The horse is rearing its tail in excitement.
   这匹马兴奋地竖起尾巴。
2. 2. The tail of the cheetah is a distinctive feature.
   猎豹的尾巴是一个独特的特征。
3. 3. The tail feathers of the peacock are used for display.
   孔雀的尾羽用于展示。