graze sheep and cattle

例句：

1. 1. The cows are grazing in the meadow.
   奶牛们在草地上吃草。
2. 2. The sheep are grazing on the hillside.
   羊在山坡上吃草。
3. 3. The herdsmen feed their horses on the grasslands.
   牧民们在草原上喂马。