the survival of the fittest

常見例句

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(xiàn)了達(dá)爾文“適者生存”理論的正確性，所有的生物必須‘適應(yīng)環(huán)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(guó)家保護(hù)人們免于遭受他們的行為（或者厄運(yùn)）的后果，導(dǎo)致本該帶來優(yōu)勝劣汰結(jié)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(jìn)化論是講適者生存，在弱肉強(qiáng)食的自然界，動(dòng)物怎么能進(jìn)化出道德情感？
耶魯公開課 - 心理學(xué)導(dǎo)論課程節(jié)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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