affinity group meaning in English

大型客户资源发展
亲密团体

Example : our tour company offers special tours with lower prices for affinity groups such as alumni associations and groups of retired teachers
我们旅游公司为像校友会、退休教师团体这样的亲密群体提供低价位的特殊旅游安排。
Promotes research and education in the philanthropy , civil society and nonprofit sectors . includes membership information , affinity groups , conferences , and publications
-为失踪者家属免费发布信息，为公安民政等机关免费刊登与失踪人员有关的信息