the survival of the fittest

常见例句

Lily: I got it, the survival of the fittest.
我明白了。適者生存嘛。
It just shows Darwin's theory about "the survival of the fittest" is true and all creatures must be "fit" to survive'
這正好展現了達爾文“適者生存”理論的正確性，所有的生物必須‘適應環境’才能生存。”
By protecting people from the consequences of their own actions (or their own bad luck), it stopped the winnowing process that would otherwise result in the survival of the fittest.
國家保護人們免於遭受他們的行爲（或者厄運）的後果，導致本該帶來優勝劣汰結果的過程停止。

The British philosopher Herbert Spencer described this struggle as "survival of the fittest."
If evolution is survival of the fittest, nature red in tooth and claw, how could animals evolve moral feelings?
如果進化論是講適者生存，在弱肉強食的自然界，動物怎麽能進化出道德情感？
耶魯公開課 - 心理學導論課程節選

Darwinian evolution requires genetic diversity plus competition that yields the survival of the fittest.
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In past ages, the law governing the survival of the fittest roughly weeded out the less desirable strains.
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Natural selection—the survival of the fittest—requires that the unfit are allowed to fail.
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