泛指一些单位或部门就某些问题，以书面不记名的方式广泛征询和了解民众对此的意见、想法和要求。是社会调查的一种民主方法和形式public opinion survey

• 美国民意测验表明，里根总统的支持率从62%上升至73%。

  A US public opinion survey shows that President Reagan's support has risen from 62% to 73%.

• 不妨在网上搞个民意测验，大家以跟帖形式投个票，看看反腐满意度究竟是多少。

  One may as well run an online public opinion survey. People can vote by giving short replies to the thread, and one can see how satisfied people are with the fight against corruption.