pollster
词根词缀：
gangster n. 匪徒
gang 帮派 + ster …人 → 匪徒
pollster n. 民意测验家
poll 民意调查 + ster …人 → 民意测验家
shyster n. 奸诈的人
shy 害羞 → 假装害羞 → 奸诈的人
songster n. 歌唱家
song 歌曲 + ster …人 → 歌唱家
spinster n. 未婚女人
spin 纺纱 + ster …人 → 为自己纺婚纱 → 未婚少女
trickster n. 骗子，耍花招的人
trick 诡计，骗局 + ster …人 → 骗子，耍花招的人
youngster n. 年轻人；孩子
young 年轻的 + ster …人 → 年轻人；孩子
数据来源：新东方英语词汇速记大全
相关例句：
Figures from Gallup, a pollster, reveal just how widespread such corruption is ( see chart).
民意测试专家盖洛普刚刚公布的调查数据显示，此类贪污行为范围之广泛。
But Quinnipiac pollster Peter Brown says that so far, there is little evidence to suggest that Obama got much of a public relations boost, or bounce, out of his trip.
不过，格林尼匹亚大学的民调专家彼得·布朗恩说，到目前为止，没有证据显示，奥巴马的这次外交之旅，在公关方面有很大收获。
But in general, as every pollster avers, it is the future more than the past that motivates voting.
但总的来说，一如每次民意测验显示的那样，投票的动力源自对未来的希望而不是对过去的纠缠。
"More and more Palestinians, particularly women and the young, are identifying with a religious rather than national struggle," says a pollster at Near East Consulting, a leading West Bank barometer.
“越来越多的巴勒斯坦人，特别是妇女和青年，都认同宗教斗争，而不是国家战争”&在近东咨询处的一名约旦河西岸晴雨表民意调查家如是说。
The non-governmental organisation based its analysis on almost 60,000 interviews in 62 countries conducted by Gallup International, the pollster, between July and September – a period when the rich world was awash with corruption scandals.
透明国际是一个非政府组织，其分析数据来自民调机构盖洛普国际（Gallup International）今年7月至9月在62个国家进行的近6万次访谈。在此期间，富国世界充溢着腐败丑闻。
Quinnipiac pollster Peter Brown says Americans have concluded the Iraq war was not worth the cost, but he adds that they remain divided on what to do next.
Quinnipiac大学的民意测验专家彼得·布朗说，美国民众认为伊拉克战争不值得打，但他补充到，人们对于下一步该做采取什么行动仍存在分歧。