sheep that have no shepherd

例句：

1. 1. The farmer has no shepherd to guide his sheep through the woods.
   这位农场主没有牧羊人带领他的羊穿过树林。
2. 2. Sheep are herded by a group of shepherds in the countryside.
   在乡村，一群牧羊人负责放牧羊群。
3. 3. The shepherd led his flock to safety after the storm passed.
   风暴过后，牧羊人带领羊群安全撤离。