I once asked a group of oncologists in New York to put their hands up if they took aspirin.

我曾经提问一个纽约的肿瘤学家小组，如果服用过阿司匹林的请举手。

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They told everybody to stop and put their hands up and asked if there were any British or Americans.

他们要求所有人不许乱动，举起手，并且询问这儿有没有英国人或者美国人。

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The latest suggests that academic performance improves if children are not allowed to put their hands up in class.

最新的研究指出，如果不允许学生在课堂上举手回答问题，他们的学习成绩会有所提高。

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Capello was delighted that the likes of Downing and Agbonlahor put their hands up for a place in his first-choice team.

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"A lot of people put their hands up on this tour and I'm sure accuracy will come with it, " he said.

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However, many drivers simply put their hands up and accepted their fate.

BBC: NEWS | UK | On the road with the traffic cops