a baby at the breast的用法和样例：
- She was feeding a baby at the breast.
- 1.to breast-feed; to suckle; to feed a baby at the breast; 2.to feed a baby with milk
- I heard a baby cry at the next door last night.
- Look at the fuzz on a baby's ear.
- And Nob, the town of the priests, he put to the sword, all the men and women, children and babies at the breast, and oxen and asses and sheep.