这种代替本来是传播疾病的自然物种的想法似乎是个离谱的要求。
These would somehow have to replace the natural, disease-bearing mosquitoes, which is a tall order.
人类依靠技术途径与仪器工具系统的支持,超越了自然物种的限制。
Relying on technological approaches and instrumental systems, humankind transcends the natural limits.
但是科学家们考虑用崭新的基因方法生产合成蛋白质,用以替代消失的自然物种。
But scientists think synthetic proteins produced by the new genes replaced the missing natural versions.
And in fact, Skinner explicitly made the analogy from the natural selection of species to the natural selection of behavior.
实际上,斯金纳也确实明确地,对物种的自然选择,同行为的自然选择进行过类比。
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