tail feather

例句：

1. 1.The bird's tail feathers are soft and fluffy.
   这只鸟的尾巴羽毛柔软蓬松。
2. 2. The baby giraffe has delicate tail feathers that help it balance.
   小长颈鹿的尾巴羽毛很细，有助于它保持平衡。
3. 3.The tail feathers of the peacock are a symbol of its beauty.
   孔雀的尾巴羽毛是它美丽的象征。