This unintended impact has to do with the portrayal of conflict in media and how preschool-age children comprehend that conflict.

这种意想不到的影响，与媒体对冲突的描述、以及学龄前儿童对这种冲突的理解有关。

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The optimal dose needed to reduce symptoms ranged widely in preschool-age children, but on average, 14 mg daily was effective in reining in symptoms.

最佳剂量要最大程度的缓解学龄前患儿的症状。然而平均每天14 mg就能有效缓解症状。

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The relation between the psychological theory of preschool-age children and executive function is now a hot issue on the study of the psychological theory of children.

学前儿童心理理论和执行功能之间的关系是目前儿童心理理论研究的热点问题。

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Additionally, Comcast will launch Disney Junior, a new 24-hour basic channel for preschool-age children, parents and caregivers.

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Before Tuesday's vote, Mar cited a study released this week by Yale University's Rudd Center for Food Policy and Obesity, which examined 12 popular restaurant chains and found only 12 out of more than 3, 000 kids' meal combinations met the nutritional guidelines for preschool-age children.

CNN: Mayor vetoes San Francisco ban on Happy Meals with toys