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	salutarily salutariness salutarinesses salutary salutation salutational salutations salutatorian salutatorians salutatories salutatorily salutatory salute packrats packs packs (off) packs (up or in) packs (up or off) packs away packs in packs off packs out packs up packs up or in packs up or off

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