单词	artificial selection
释义	artificial selection noun : selective breeding Even artificial selection is slow: it takes decades and acres of space to develop just one new cultivar. Jack Fincher Word History First Known Use 1859, in the meaning defined above
随便看	go belly-up go berserk go beyond go blank go blind go blue go broke go bust go by go by the board go bye-bye go bye-byes go club-hopping go commando go crawling to go crazy go crook go cup go cups go dark go de go dead go deaf go desert state park go down

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