单词	back taper
释义	back taper noun : a slight relief on a tap or drill causing it to have a larger diameter at the point than at the shank Word History First Known Use 1941, in the meaning defined above
随便看	dowsets dowsing dowsing chock dowsing rod Dowson dowst dowter dowy dox doxastics doxed doxepins doxes Doxiadis doxic doxical doxie doxies doxing doxings doxographer doxographers doxographic doxographical doxography

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