In August seven American soldiers approaching the end of their tour in Iraq published an op-ed article in the New York Times that cast doubt on claims of progress.

八月，七个美国士兵快在伊拉克完成任务时，在纽约时报的社论对页版上发表了文章，对那些声称情况有进展的言论提出怀疑。

www.ecocn.org

Recently, discoveries of early human remains in China and Spa，in have cast doubt on the 'Out of Africa' theory, but no-one was certain.

最近，发现在中国和巴斯的人类早期遗骸，使人们开始怀疑“走出非洲”的理论，但是没人可以肯定它是否正确。

article.yeeyan.org

He says,even if losses are taken into account, no one can now cast doubt on those who organized and led the victory.

VOA: standard.2009.12.25

The global downward market trend accelerated Thursday with two economic reports that cast doubt on the sustained vitality of the U.S.economic recovery.

VOA: standard.2010.05.20

But another report has cast doubt on the second part of that assumption.

VOA: standard.2010.05.20

Others cast doubt on the bond timetable in light of the development challenges ahead.

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Close scrutiny of these reports, however show several factors that cast doubt on their claims.

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Some economists think the results cast doubt on the long-held verities of their discipline.

ECONOMIST: Affluence