weaner calf

例句：

1. 1. The farmer is weaning his young bulls from the herd.
   农民正在将他的幼牛从牛群中分离出来。
2. 2. The weaner calf has a strong appetite and needs to be fed frequently.
   育肥小牛胃口强，需要经常喂食。
3. 3. Weaner calves are often raised in large groups to prevent disease transmission.
   育肥小牛通常被养在大的群体中，以防止疾病传播。