bone up

动词 v.

英文释义

动词 v.
  1. To study or cram, especially in order to refresh one's knowledge of a topic. intransitive,slang
    — Information acquired in that way, makes an impression ; this "boning" up for an examination is all right as a finishing touch, but it will not last.

词形变化

bones up present,singular,third-person boning up participle,present boned up participle,past boned up past
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