Hundreds of scientists, writers and academics sounded a warning to humanity in an open letter published last December: Policymakers and the rest of us must engage openly with the risk of global collapse.

在去年12月发表的一封公开信中，数百名科学家、作家和学者向人类发出了警告：政策制定者和我们其他人必须公开应对全球崩溃的风险。

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It is far from being enough to consider only financial factors in thecomprehensive risk warning system of a P&C company.

 仅仅考虑财务指标在财产保险公司的全面风险预警中是远远不够的。

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The main problem lies in the lack of a clear understanding of the risk involved and the failure to establish a risk warning and prevention system.

其主要原因在于对小额信贷的风险认识不清，没有真正建立其风险预警和防范体系。

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In its just-issued warning, AKE says members of the press remain most at risk, but all foreign personnel, including investors and business travel, also are potential targets.

VOA: standard.2009.09.10

New York has been on "orange" alert, or the second-highest level -- indicating a high risk of terror attack -- since the color-coded warning system was established after the September 11, 2001 attacks.

CNN: New York subway system on alert

All that followed a warning to doctors on Feb. 10 that some 87, 000 lifesaving heart devices--mostly implantable cardioverter defibrillators, or ICDs, which use batteries to shock an abnormally beating heart back into rhythm--were at risk of losing power without warning.

FORBES: Magazine Article

All that followed a warning to doctors on Feb. 10 that some 87, 000 life-saving heart devices-mostly implantable cardioverter defibrillators, or ICDs, which use batteries to shock an abnormally beating heart back into rhythm-were at risk of losing power without warning.

FORBES: Magazine Article