U.S.Middle East envoy George Mitchell will hold three days of separate talks with Israeli and Palestinian leaders in an effort to advance the peace process.

VOA: standard.2009.07.26

And there is no belief you could possibly hold given these numbers in this game that could ever rationalize shooting the ball to the middle.

在给出的这些数据下,无论你认为门将有多大概率会扑向右路,从中路射门绝对不是一个合理的选择

耶鲁公开课 - 博弈论课程节选

Is that right? So no: to say it another way, middle is not a best response to any belief I can hold about the goal keeper, to any belief.

我说的没错吧,或者换个说法,从中路射门无论在何种信念下,都不是一个最佳对策

耶鲁公开课 - 博弈论课程节选

And the question now is whether Republicans will vote to raise taxes on the middle class and hold the middle class hostage on the insistence that the wealthiest Americans continue to get tax breaks that contributed mightily already to our deficits, which in this economic environment they do not need.

WHITEHOUSE: Press Briefing

It is very important that we extend those middle-class tax provisions to hold middle-class families harmless.

WHITEHOUSE: President Obama After Cabinet Meeting

We should not hold the middle class hostage while we debate tax cuts for the wealthy.

WHITEHOUSE: President Obama Holds a Press Conference