bone up on

柯林斯詞典

bone up on (boning,boned,bones)

• 1. PHRASAL VERB If you bone up on a subject, you try to find out about it or remind yourself what you have already learned about it. 鉆研; 溫習(xí)

  I had spent the last few months boning up on neurology. 我前幾個月都在鉆研神經(jīng)病學(xué)。

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