There was a fatal flaw in the plan.

计划中有一个致命的缺陷。

《牛津词典》

As Permian life-forms declined, they reached a fatal threshold and species succumbed to mass extinction.

随着二叠纪生命形式的衰退，它们达到了一个致命的临界点，物种最终走向了大灭绝。

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Many gray squirrels are silent carriers of a disease fatal to red squirrels.

许多灰松鼠悄无声息地携带着一种对红松鼠致命的疾病。

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sanctions resulting from the launch will deal a fatal blow to six-nation talks aimed at ending the North's nuclear weapons programs.

VOA: standard.2009.03.27

All I want to stress is that my discovery of her was a fatal consequence of that "princedom by the sea" in my tortured past.

我想强调的是，我对她的发现,乃是在扭曲的过去里建筑的那座海边王国的致命后果。

耶鲁公开课 - 1945年后的美国小说课程节选

It's a devastating, frequently fatal infectious disease.

它是一种毁灭性的,频繁发病的致命疾病

耶鲁公开课 - 生物医学工程探索课程节选

Meanwhile, police are investigating a fatal crash on a motorway close to Belfast in which two County Antrim teenagers died.

BBC: Two more deaths on roads

When one of them suffers what is clearly a fatal injury on a construction site, the dying man implores Igor to take care of his wife and children.

WSJ: Plain, Piercing, Astonishing 'The Kid With a Bike' Takes Flight | Film Reviews by Joe Morgenstern

In August, as the U.S. watched rescuers attempt unsuccessfully to reach workers trapped following a fatal accident at a Utah coal mine, lawmakers inevitably called for tougher safety regulations to govern the industry.

FORBES: America's Most Dangerous Jobs