喝水？

护士有交代，不可以给新生儿喝开水。上网查询一下，给初生儿喝开水是非同小可的。

If you have an infant at home, you shouldn’t ever give them plain water. Water can interfere with a baby’s ability to receive proper nourishment or could even make them sick. Once your baby reaches six months, it’s okay for you to offer some water, but you should still give them breast milk or formula as well.

Schumacker, L. (2018, February 14). You shouldn’t be giving your baby water — here’s why. Insider; Insider. https://www.insider.com/can-babies-drink-water-2018-2
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简而言之，会影响婴儿的健康。要到 6 个月大才可以喝水。