课外活动集中地体现了皮尤的调查中发现的养育方式的差异，该调查的样本包括1807位父母，具有全国代表性。
Extracurricular activities epitomize the differences in child rearing in the Pew survey, which was of a nationally representative sample of 1,807 parents.
课外活动集中地体现了皮尤的调查中发现的养育方式的差异，该调查的样本包括1807位父母，具有全国代表性。
Extracurricular activities epitomize the differences in child rearing in the Pew survey, which was of a nationally representative sample of 1,807 parents.
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