Most hospitals are now staffed by new graduates as experienced nurses finally give up trying to change the system.

现在大多数医院的工作人员都是刚毕业的大学生，因为经验丰富的护士最终不再试着改变系统。

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Now, finally, I just think it makes sense for us to give it up for all of our outstanding American athletes who are competing in London right now. (Applause.) I want to congratulate Michael Phelps -- (applause) -- most medals we've ever seen.

WHITEHOUSE: Remarks by the President at a Campaign Event