Instead,the protein builds up in the joints and attacks cartilage and bone.

VOA: special.2010.05.19

Maybe you have to bone up on your test-taking skills.

你应该提升一下应试技巧。

麻省理工公开课 - 固态化学导论课程节选

And in conclusion he imagines giving up that terrific drive towards imagination and idealization and a return to the "rag and bone shop of the heart."

结尾时他想象,放弃这一想象力和理想化的,极妙的创作驱动力,回到污秽的心的废品铺“

耶鲁公开课 - 现代诗歌课程节选

Instead,the protein builds up in the joints and attack cartilage and bone.

VOA: special.2010.03.16