frosted teat

例句：

1. 1.The baby's teat was frozen during the cold winter night.
   宝宝在寒冷的冬夜被冻住了。
2. 2.The farmer had to use a special tool to thaw out the frosted teat of the cow.
   农民不得不使用特殊的工具来解冻牛的霜冻乳头。
3. 3.The milking machine froze the teat of the cow and caused it to bleed.
   挤奶机冻结了奶牛的乳头，导致它流血。