stud bull

例句：

1. 1. Thefarmer kept his cows in a stud bull.
   农夫把奶牛养在牛棚里。
2. 2. The stable is where the horsesare kept.
   马厩是马匹被饲养的地方。
3. 3. The stud bull was responsible forbreeding the best horses in the area.
   这个牛棚负责培育该地区最好的马匹。