His family is not very well off.

他家境不太宽裕。

《牛津词典》

Although this family put up quite a front, they really are not very well off.

虽然这家人很会撑场面，其实并不富裕。

《新英汉大辞典》

I hear she comes from a well-off family.

听说她出生于一个富裕家庭。

youdao

Mr Mahama hails from the Gonja ethnic group in northern Ghana, where he was born in 1958 to a well-off family.

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He grew up in the quiet environment of a comfortably well-off family, whose attitudes had been shaped by memories of the War itself and the uncertainty of the post-War austerity years.

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Her mother's family had been relatively well-off in Tokyo before the war, but the evacuation drained the family's wealth.

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