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	facilis descensus averni facilis descensus Averno facilitate facilitated facilitates facilitating facilitation facilitations facilitative facilitator facilitators facilitatory facilities facilities contract facility facinerious facing facing brick facing distance facing off facing sand facing slip facing tile facing up facing up (to)

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