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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Presently, concrete especially high flowing concrete can easily crack at early ages.

目前，混凝土特别是大流动性混凝土容易产生早期裂缝。

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To help keep their future technology industries in the game, schools in the United States and India for example are already introducing computer science at early ages at school.

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Yes, and some of us do have a very different view about sensible gun education, one where parents teach their children true responsibility at early ages, exposing sons and daughters to extremely stringent safety protocols which carry over into all other aspects of disciplined behavior.

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They both assumed leadership in their disciplines at relatively early ages and could have rested on laurels.

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