单词	rotary drill
释义	rotary drill noun : a rock drill that bores by a rotary action Word History First Known Use 1860, in the meaning defined above
随便看	ufologist ufologists ufology ufos ufra disease Uganda ugandae ugandan ugandans ugandas Ugaraño Ugarit Ugaritian Ugaritic ugaritics Ugarte ugedei ugglesome ugh ughs Ugli uglied uglier uglies ugliest

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