fletch

例句：

1. 1.The ducklings are swimming in the pond.
   鸭子们在池塘里游泳。
2. 2. The farmer was busy with his flock of sheep.
   农民忙于他的羊群。
3. 3. The little girl is fascinated by the baby chicks.
   小女孩对小鸡很感兴趣。