to feed a baby, especially a baby animal, with milk from the organ in the mother that produces milk, or (of a baby, especially a baby animal) to drink milk from the mother给(尤指幼兽)喂奶;(尤指幼兽)吃奶,吸奶
We watched the cow suckling her calves.我们看着奶牛给小牛喂奶。
The puppies went back to their mother to suckle.小狗跑回到狗妈妈身边去吃奶。