Mothers and infants were enrolled in a trial of vitamin a supplementation during which the infants' weight, length and feeding practices were assessed regularly.

这些母亲和婴儿参与了一项维他命补充试验，试验过程中定期评估婴儿的体重、身高和喂养方法。

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Breast-feeding isn't always easy; it takes some infants and mothers awhile to get the hang of it.

母乳喂养的确不那么容易，甚至需要母亲和婴儿花费一段时间才能熟悉。

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Now, researchers in Britain have found that breast-feeding may not protect infants against developing eczema and other allergic diseases.

现在，英国的研究人员已经发现母乳喂养可能对幼儿罹患湿疹以及其他过敏疾病无能为力。

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Many teaching in medical schools today were raised in the better-living-though-chemistry age, when infant formula was thought to trump the attributes of breast milk. (Formula was certainly an improvement over the non-pasteurized cow's milk that killed many infants at the turn of the 20th century, when breast-feeding was not in vogue).

CNN: Is the medical community failing breast-feeding moms?