Kathy Sylva, professor of educational psychology at Oxford University, reached her conclusions from a study of 3,000 children from the ages of three to five.

牛津大学教育心理学教授凯西·西尔瓦通过对3000名3至5岁儿童的研究得出了她的结论。

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Uncle Sam will be ready to teach children of all ages all these things at the City Theatre on Saturday morning at 10.

周六上午10点，山姆大叔将在城市剧院向所有年龄段的孩子教授这些事项。

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Children of educated and upper-middle-class parents turn out to be far more curious, even at early ages, than children of working-class and lower-class families.

比起工人阶级和下层家庭的孩子，受过教育的孩子以及中上层家庭的孩子甚至在很小的时候就更有好奇心。

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While people of all ages are affected, women who are old enough to have children are especially at risk.

VOA: special.2009.04.14

And from then on we have the prep school championships, which is for students or children at the ages of about nine through to 12.

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Between the ages of two and seven children are only able to pay attention to one aspect of a scenario at a given moment.

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Children should receive four doses of inactivated polio vaccine, delivered as an injection, at ages 2 months, 4 months, 6 to 18 months, and 4 to 6 years, according to the CDC.

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