They promote social integration and assimilation of minority ethnic groups into the culture.

他们提倡少数民族团体与该文化的社会融合及同化。

《柯林斯英汉双解大词典》

Researchers who are unfamiliar with the cultural and ethnic groups they are studying must take extra precautions to shed any biases they bring with them from their own culture.

不熟悉所研究的文化和种族群体的研究人员必须采取额外预防措施，以摆脱他们从自己的文化带来的任何偏见。

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They are divided into dozens of ethnic groups, but they share some general patterns of living and culture.

他们被分为许多种民族群体，但是他们有一些共同的生活模式和文化。

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The more powerful culture rarely respects the language and culture of smaller ethnic groups.

VOA: special.2009.12.02

It will require bringing together voters who not only split their votes among Democrats, Republicans and independents, but also are from 30 distinct ethnic groups separated by language, culture and, for some, historical enmity of their ancestral nations.

CNN