英语词汇bone up怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	bone up
释义	bone up HbEJn, $boJn v adv [I] infml to learn as much as you can about something for a special reason 苦学，专心致志地学 She boned up on economics before applying for the job. 申请工作前她专心致志地学习了经济学。
随便看	musicianship musicologist musicology musk musket musky Muslim Muslim muslin muss muss mussel -must must must must mustache mustachio mustachioed mustard muster muster muster mustn't musty

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