He had shown himself careless of personal safety where the life of his colleagues might be at risk.

他在同事们有生命危险时表现出不顾个人安危之举。

《柯林斯英汉双解大词典》

The researchers said, "An elder would be at risk of poorer diet to keep healthy."

研究人员说：“老人有吃更差的饮食，无法保持健康的风险。”

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Fish and other creatures are thought unlikely to be at risk from the relatively slow-turning blades.

人们认为，旋转相对较慢的叶片不太可能对鱼类和其他生物造成威胁。

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Experts say more than thirty million people could be at risk of shortages unless a solution is found.

VOA: special.2009.09.21

Right? That's just what seems to be at risk if I can never get beyond my preconceptions.

对吗？如果我无法超于自己的先入之见,这似乎有风险。

耶鲁公开课 - 文学理论导论课程节选

You can see that when you get out to the highest groups here, the highest weights, the relative risk is up at two and a half or three, so that would be a 200% increase in risk for cardiovascular death or two to three times the risk of death.

当我们看图上相对风险最高的这组,也就是体重最大的这组,这组的相对风险大约是2.5倍到3倍,即心血管疾病致死的风险增加了200%,或者说增加了2到3倍

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The U.N. estimates that 60 million people could be at risk across the two countries.

WSJ: Cyclone Threatens Bangladesh, Myanmar

Leigh Halfpenny may be set for a cap, but Tom Shanklin's spot may be at risk.

BBC: Injury blow for Wales wing Jones

About 20, 000 girls a year are thought to be at risk from the practice.

BBC: Stop cultural 'pick-and-mix', warns minister