母羊

例句：

1. 1. The farmer has a flock of sheep in his farmyard.
   这位农民在他的农场里养了一群羊。
2. 2. Sheep are often used for their wool.
   羊通常被用来取羊毛。
3. 3. The shepherd led the sheep to safety.
   牧羊人带领羊群安全了。