The nationwide survey was conducted by Public Policy Polling on September 26 and 27.

这项由“公共政策调查”机构开展的全国性调查于上月26日和27日进行，共有452名雇员参与。

And so they decided, because they were intrigued by this finding, to do a nationwide survey.

因为他们的好奇心被激起了，因此，他们决定去做一个全国性的调查。

A nationwide survey was undertaken in 1999-2001 to document the magnitude and causes of blindness.

为统计失明人数及病因，于1999～2001年度在全国范围内开展了调查。

In a nationwide survey of more than 9,000 students by China Youth Daily at the end of last year, the average monthly salary barely reached 3,000 yuan.

去年年末，《中国青年报》针对全国范围内的9000多名毕业生进行了一项调查，结果显示毕业生平均工资勉强达到3000元/月。

Drawing on a nationwide survey of nearly 20,000 British adults from 2014 to 2016, the team thinks they might have found a weekly 'sweet spot' for nature exposure.

从2014年到2016年对近20000英国成年人的调查中，这个团队认为自己可能找到了一周中接触自然的“甜蜜点”。