单词	adamantine drill
释义	adamantine drill noun : a tubular well-drilling bit with hardened steel shot that revolve under the rim of the rotating tube Word History First Known Use circa 1904, in the meaning defined above
随便看	dotingly dotings dotish dotkin dotlet Doto dotreles dotrels dotriacontane dots dotseed plantain dotted dotted line dotted manner dotted smartweed dotted swiss dottels dotter dotterel dotterels dotters dottier dottiest dottilier dottiliest

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