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  1. grindstone

    • IPA[ˈɡrīn(d)ˌstōn]

    美式

    • n.
      a thick disk of stone or other abrasive material mounted so as to revolve, used for grinding, sharpening, or polishing metal objects.;another term for millstone
    • noun: grindstone, plural noun: grindstones

    • 相關詞
    • 片語
    • ph.
      work hard and continuously

    Oxford American Dictionary

    • ph.
      work hard and continuously

    Oxford Dictionary

    • 更多解釋
    • IPA[ˈɡrʌɪn(d)stəʊn]

    英式

    • n.
      a thick disc of stone or other abrasive material mounted so as to revolve, used for grinding, ...

    Oxford Dictionary