He'd also like to know which issues his guests might be interested in discussing so he can bone up beforehand.他还想知道客人们可能喜欢谈论哪些话题, 以便提前钻研一下。

He should have boned up on Machiavelli's 'The Prince' instead.他本该专心研究马基雅弗利的《君主论》。

I had spent the last few months boning up on neurology.过去几个月我在突击学习神经学。