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the theory of natural selection, first propounded by Charles Darwin查爾斯?達(dá)爾文首先提出的物競天擇理論Natural selection ensures only the fittest survive to pass their genes on to the next generation.自然選擇確保只有最適應(yīng)環(huán)境的物種得以存活下來，把基因傳給下一代。All ba...

natural selection的音標(biāo)：natural selection的英式發(fā)音音標(biāo)為：['n?t??r?l si'lek??n]natural selection的美式發(fā)音音標(biāo)為：['n?t??r?l s?'l?k??n]...

n.自然選擇，物競天擇說...