Dink family generally refers to working-class couples who have no children, and couples have "double income and no children". According to the individual differences between husband and wife, Dink family can be divided into active and passive types. The former refers to families where both husband and wife are fertile but voluntarily infertile; The latter refers to families without children because one or both spouses are infertile. Chinese name DINK mbth Double-income childless attribute Synonymous interpretation of some family characteristics A double-income childless family is subjectively childless, and both husband and wife have income.

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