以下这些英语句子都可以表达“喂婴儿”的意思：

1.Feed the baby.

3.Give food to the baby.

Here is a description of feeding a baby milk:

The baby is wrapped in a soft blanket, looking up at the mother with innocent eyes.

The mother has a bottle of warm milk prepared, and she carefully positions the nipple of the bottle into the baby's mouth.

The baby starts to suckle hungrily, making small smacking sounds.