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	punker punkers punkest punkeys punkie punkier punkies punkiest punkin punkiness punkinesses punkins punkish punks punkwood punky punless saplinghood saplings sapodilla sapodilla family sapodillas sapogenin sapogenins saponaceous

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