The ability of a species to compete and adapt to a gradually changing environment is not the only ability that is essential for survival.

一个物种竞争和适应逐渐变化的环境的能力并不是生存所必需的唯一能力。

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The most important factor for the survival of a species is its ability to compete and adapt to gradual changes in its environment.

一个物种最重要的生存因素是它的竞争能力和适应环境逐渐变化的能力。

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The ability to accurately recognize faces andread facial expressions is a key element of survival for the brain...

对大脑来说，准确地识别人脸和解读面部表情是生存的重要功能。

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It would have to rely for its survival on the ability to terrify its opponents with the same success as it had terrified its own citizens.

CENTERFORSECURITYPOLICY: 'Courage'

Harrigan notes that the complaint in the case asserts that Stern was largely responsible for the survival of Sirius and its ability to merge with XM Radio.

FORBES: Sirius XM: Analyst Downgrades On Howard Stern's Lawsuit

For factory owners, the ability to recruit workers is a matter of survival.

WSJ: China Factories Try Karaoke, Speed Dating to Keep Workers