dairy cow的用法和樣例：
例句
用作名詞 (n.)
- The dairy farm keeps many dairy cows.
乳牛場飼養了很多乳牛。 - At that moment the cow went sliding off the roof.
就在那個時候，乳牛從屋頂滑落了下去。 - One cow furnished milk for all of them.
一頭奶牛為他們所有人提供牛奶。 - John has to milk the cow early in the morning.
約翰一大早就要給奶牛擠奶。
