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	ling rootstock ling's formula ling's solution linga Lingala lingam lingams lingas Lingayat lingayats Lingayen Gulf lingberries lingberry lingberryes lingberrys lingbird lingcod lingcods linge linged lingel lingels lingenberries lingenberryes lingenberrys

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