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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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.

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比工人阶级和下层家庭的孩子更有好奇心。

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"I still grew up in an upper middle-class home with parents who didn't have college degrees," Schneider said.

施耐德说道：“我的父母没有大学文凭，但我仍然成长于一个上层中产阶级的家庭。”

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If an upper middle-class girl has one or more African parents, for example, she has likely schooled in the United States or Europe -- maybe even a generation after her own parents have.

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At trial, jurors saw a video of Lowe telling police she had given birth alone on Sept. 12, 2011, in the bathroom of her parents' home on a quiet cul-de-sac in an upper-middle-class neighborhood.

NPR: Jury Convicts Tenn Mother In Newborn Twins' Deaths