单词	Dollo's law
释义	Dollo's law noun Dol·​lo's law ˈdä(ˌ)lōz- : a generalization in biology: characters lost in the course of evolution are never regained in the original form Word History Etymology after Louis Dollo †1931 Belgian paleontologist
随便看	pit master pit masters pit membrane pit orchestra pit pony Pit River Indian pit run pit saw pit sawyer pit scale pit stop pit tomb pit viper pit vipers pit your wits against pit-a-pat pit-a-pats pit-a-patted pit-a-patting pit-head frame pit-headed pit-making scale pit-pair pit-pat pita

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