Today's families may include both the biological mother and father or a single parent or guardian, grandparents or other extended family, same-gender parents, or foster parents.

今天的家庭可能包括亲生父母，或者是单亲或监护人，以及祖父母或其他延伸的家庭成员，甚至是同性父母或者养父母。

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Social scientists have found that children growing up in single-parent families are disadvantaged in some ways when compared to those from two-biological-parent families.

社会学家发现，和在双亲家庭成长起来的孩子相比，单亲家庭长大的孩子在某些方面稍显劣势。

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Social scientists have found that children growing up in single-parent families are disadvantaged in some ways when compared to those from two-biological-parent families.

社会学家发现，和在双亲家庭成长起来的孩子相比，单亲家庭长大的孩子在某些方面稍显劣势。

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