自然淘汰;自然消除

natural elimination的用法和样例：

例句

Charles Darwin formulated the theory of natural selection.达尔文系统地阐述了自然淘汰的法则。

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学英语单词

2'5'-AS

6-Methylcoumarin

acceptance of bills

accidental overexposure

acid azides

allotroph

anchored type ceramic veneer