But the group estimates that irregularities occurred at a third of polling places.

该组织估计，非法现象在三分之一的投票站都有出现。

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A polling group can have any number of participants as well as an expandable list of polling categories.

一个调查组可以包含任意数量的参与者和可扩展的调查类别列表。

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Yet the ordinary voters may not be so sure: according to a survey by BVA, a polling group, 53% did not find her speech convincing.

但是普通选民对其可并不十分看好：一个民调机构BVA的调查结果显示，约有53%的民众并不看好其竞选纲领。

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Tim Montgomerie said that although the concept was useful in government it was "inexcusable" that the Big Society had not been tested in a focus group or polling before it had been launched as an election pledge.

BBC: Why did the Tories not win the 2010 general election?

MORI, a polling group, 45% of people go at least once a year, compared to 31% in 2000.

ECONOMIST: Dumbed-down Britain? You would be stupid to believe it

TNS-Sofres, a polling group, down four points from May.

ECONOMIST: The limits of political legerdemain