opinion poll
noun [ C ] uk/əˈpɪn.jən ˌpəʊl/ us/əˈpɪn.jən ˌpoʊl/
民意调查，民意测验
an occasion when people are asked questions to discover what they think about a subject
The latest opinion poll shows that the president's popularity has declined. 最近的民意调查显示总统的支持率有所下降。