U. s. officials recommend babies be breastfed for the first year of life. The World Health Organization says breastfeeding should last two years.

美国官员建议婴儿在一岁之前一直使用母乳喂养。世界卫生组织表示，母乳喂养应该坚持两年时间。

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S. women and their babies found as many as one in five women gains too much weight during pregnancy, doubling the chances her baby will weigh 9 pounds (4 kg) or more.

调查结果显示，其中多达五分之一的女性怀孕期间体重增长过多，这使她们的孩子出生体重达或超过9磅(4公斤)的几率增加了一倍。

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One in 12 babies born in the U. S. in 2008 were offspring of illegal immigrants, according to a new study, an estimate that could inflame the debate over birthright citizenship.

新近一项研究显示，2008年在美国出生的婴儿中，每12个人中就有一个是非法移民的子女，这一估算可能加剧美国社会对在美出生即获美国公民权一事的争论。

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The study found that more than one-third of the pictures in women's magazines showed babies in unsafe sleep positions.

VOA: special.2009.08.26

So the right question to ask is, what's the probability, not that June had 48 babies, but that at least one of the 12 months had 48 babies.

所以正确的问题是，不是去看这个6月,有48个宝宝出生，而是去看至少有一个月的出生人数。

麻省理工公开课 - 计算机科学及编程导论课程节选

Some of this work's been done at Yale in Karen Wynn's lab, where they look at babies' understanding of addition and subtraction.

这个研究的一些部分是在耶鲁的,凯伦·韦恩实验室进行的,他们在那里观察婴儿对加减法的理解

耶鲁公开课 - 心理学导论课程节选

Birthright citizenship guarantees U.S. citizenship to almost all babies born on U.S. soil, with the children of diplomats the primary exception.

FORBES: Ending Birthright Citizenship Would Be Costly for Americans

Tokyo's governor recommended that babies be kept away from the city's tap water as it contained higher levels of radioactive iodine.

ECONOMIST: Politics this week

It's vital that babies are protected from the day they are born - that's why we are offering the vaccine to all pregnant women.

BBC: baby being vaccinated