You're a member of these groups and, as we will discuss repeatedly when we talk about social cognition and social behavior, this membership matters a lot to you.

你们都属于其中某些群体,我们以后会反复地谈到,当我们讲社会认知和社会行为时，这种群体隶属对你有很重要的意义。

耶鲁公开课 - 心理学导论课程节选

In the US it means establishing new umbrella groups that represent the majority and deny membership to marginal groups that represent next to no one.

CENTERFORSECURITYPOLICY: Confronting Our Subversive Institutions

The report also found membership of heritage groups were the highest they had ever been.

BBC: English heritage sites 'thriving'

These allow the unions to provide a wider range of financial products, including paying interest on savings accounts, and extending membership to community groups and companies.

BBC: Financial Services Bill