groups

focus group n. （销售）讨论组 age group 同龄组; 同一年龄; 分龄 working group 工作小组；事务委员会 pressure group n. 压力集团（通过政治压力以扩展他们本身利益的集团）；群众压力 groups of death groups of Lie type group of death group of Lie type group of galaxies ethnic groups splinter groups (splinter-group 的复数) 分裂出来的小派别；从大集团里分出来的小集团 support groups functional groups rock groups focus groups