rear udder

例句：

1. 1.The horse reared up and neighed loudly.
   那匹马后腿一蹬，大声嘶鸣。
2. 2. The cow was rearing its young in the field.
   母牛在田野里哺乳小牛。
3. 3. The dog's tail was wagging behind him as he ran.
   狗在后面跑的时候尾巴摇来摇去。