calf of the leg

例句：

1. 1. The calf is growing well and will be ready for market in a few weeks.
   这头小牛生长得很好，几周后就可以上市了。
2. 2. The farmer has to feed the calf daily to ensure it grows healthily.
   农民必须每天喂养小牛，以确保它健康成长。
3. 3. The calf was born with a blue spot on its forehead.
   这只小牛出生时额头上有一块蓝斑。