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[进化]自然选择；物竞天择说
1、selection day───选拔日
2、darwinian natural selection───达尔文自然选择
3、portfolio selection───组合证券投资选择；笼统投资选择；有价证卷选择
4、jury selection───陪审员选任制度；陪审团选拔；挑选陪审员
5、apostatic selection───背道选择
6、selection 2020───选择2020
7、discretional selection───自由选择
8、natural───adj.自然的；物质的；天生的；不做作的；n.(Natural)人名；(西)纳图拉尔；n.自然的事情；白痴；本位音
9、selection───n.选择，挑选；选集；精选品
1、He thought that natural selection had operated on us, just as it had on fruit flies and centipedes.───他认为自然选择对我们产生了作用，正如对待果蝇和蜈蚣那样。
2、Only the individuals of a species are subject to the pressures of natural selection.───只有一个物种的个体感受到自然选择的压力。
3、Mathematical models of gene-culture interaction suggest that this form of natural selection can be particularly rapid.───基因和文化互动的数学模型表面这种形式的自然选择可能特别的频繁。
4、But the concept of natural selection, and Darwin's own presentation of it, has one very unfortunate aspect.───不过，达尔文对自然选择概念的描述有着非常令人遗憾的一面。
5、Such an accelerated rate of evolution might be due to factors other than natural selection, in particular GC-biased gene conversion.───这种加速进化可能是由于自然因素以外的其他选择，特别是气相色谱偏向基因转换。
6、Thus, natural selection stabilized this host-parasite relationship.───因此，自然选择让这种寄主-寄生关系变得稳定。
7、Why not copy these proven models, the engineers wondered, rather than trying to outguess 4 billion years of natural selection?───工程师想知道为什么不复制这些行之有效的生物原型，而偏偏费力地去猜测40亿年的自然选择。
8、If we were truly a result of evolution by process of natural selection, this value on human life seems as though it has no source.───如果我们真的是通过自然选择的过程进化出来的结果，那么人类生命的价值看起来是不能追溯到源头的。
9、selection ensures only the fittest survive to pass their genes on to the next generation.───物竞天择确保只有最适应环境的物种才得以生存下来，把基因传递给下一代。