His comments reflected what other officials have said that ending the F-22 program is just one part of the effort to shift the focus of U.S.defenses away from what they see as the relatively remote possibility of a war with a major power and toward the types of smaller-scale conflicts of recent years.

VOA: standard.2009.07.21

And this is one way of doing it but they'll alternate and they'll give you different ones to shift around and everything.

这是其中一个实验方式,他们还会变花样，让你做不同的,把实验方式变来变去。

耶鲁公开课 - 心理学导论课程节选

One of the great shifts in English/British history that you will become aware of is the shift of economic dynamism in England away from the south to the north.

英国历史进程的重大转折之一,就是在英国南北部之间的,经济活力的改变

耶鲁公开课 - 欧洲文明课程节选

The reason why we need positive psychology is to shift the pendulum from the 21:1 ratio that we have today: for every one study on depression or anxiety, we have 21 studies on-- sorry, for one study on happiness or wellbeing, we have 21 studies on depression and anxiety.

我们需要积极心理学是为了改变,现在的21比1这个比率：,每有一项关于抑郁或焦虑的研究，就有21项，对不起，应该是每有一项关于快乐或幸福的研究，就有21项关于抑郁或焦虑的研究。

哈佛公开课 - 幸福课课程节选