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	Cornaceae cornaceaes cornaceous cornada cornages cornball cornballer cornballest cornballs cornbind cornbottle cornbraided cornbraiding cornbraids cornbrashes cornbreads corncakes corncob corncob pipe corncobs corncockles corncracker corncrake corncrakes corncrib

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