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    brush up

  1. Oxford Dictionary

    brush-up

    • n.
      an act of cleaning or smartening oneself or something up；an act of improving existing knowledge or skill in a particular area

    • noun: brush-up, plural noun: brush-ups

    • 釋義

    名詞

    • 1. British an act of cleaning or smartening oneself or something up he must want a wash and brush-up after the long journey
    • ▪ British an act of improving existing knowledge or skill in a particular area a two-day brush-up course