dairy cow

例句：

1. 1. The dairy cowsare milking the cows in thefield.
   奶牛们在田野里挤奶。
2. 2. Sheenjoys watching the dairy cows grazein the pasture.
   她喜欢看着奶牛在草场上吃草。
3. 3. Thedairy industry is responsible forproducing a significant amount of milkand dairy products.
   乳制品行业负责生产大量的牛奶和乳制品。