[宝宝] 1岁换奶需渐近式吗?

楼主: fannydan (很多梦想~)   2014-10-24 13:39:19
朋友小孩已1岁了,出生后便固定喝某一家奶粉,最近考虑换另一家奶粉,
请问还需渐近式换奶吗?需多久换一匙?谢谢

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