词典释义：
释义
the competition between organisms, especially as an element in natural selection, or between people seeking a livelihood
生存竞争。
双语例句
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The struggle for existence gets increasingly intense/tough.
生存竞争日益激烈。
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It was these special advantages that put men far ahead of all other living creatures in the struggle for existence.
正是这些特别的长处使人类在为生存而作的斗争中，远远超过了所有其他生物。
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Many authors have argued for the inevitability of war from the premise that in the struggle for existence among animal species , only the fittest survive.
多作家根据动物世界为生存而进行的斗争中具有适者生存的规律这一点，论证战争是不可避免的。