a small group of people, specially chosen to represent different social classes, etc., who are asked to discuss and give their opinions about a particular subject. The information obtained is used by people doing market research, for example about new products or for a political party. 焦点小组(选自各阶层,讨论某专项问题;所得信息常为市场调查人员或某政党所用) Oxford Collocations DictionaryFocus group is used before these nouns:- participant