让宝宝直坐着（多多少少）喂食。 少食多餐。 从宝宝身上得出他是否需要打嗝的反馈。 要知道不是每一次喂食都需要打嗝。

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Hold your baby at a 45° angle when breast- or bottle-feeding. This lowers the chance that the baby will need to burp by positioning the baby in an easier position to swallow. Long, heavy feedings present a higher chance of letting the baby gulp in excess air. Try to keep the feedings light and frequent instead. In between suckling, look at your baby and try to gauge their comfort level. An uncomfortable grimace on your baby's otherwise pleasant lips may mean that she needs to burp. If the baby r