They are a stable marriage.

他们有个稳定的婚姻。

youdao

Keeping up friendships is important too, as is a stable marriage.

拥有稳定的婚姻关系和一帮朋友也是很有助于提升幸福感。

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A stable marriage has the same emotional value to a husband or wife as a salary of ?65, 000 a year, it was claimed yesterday.

据说，一段稳定、幸福、美满的婚姻给丈夫或妻子带来的精神上的满足感相当于一份年薪65000英镑（约合69万人民币）工作的所带来的快乐。

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Since when is race a contributor to a stable marriage?

FORBES: Magazine Article

What about the studies that document the fact that working women who enjoy their careers and are happy about working promote stable marriage and provide wonderful role models for their children?

FORBES: Readers Say

Many factors contribute to a stable marriage, including the marital status of your spouse's parents (folks with divorced parents are significantly more likely to get divorced themselves), age at first marriage, race, religious beliefs and socio-economic status.

FORBES: Careers And Marriage