"Insurgencies last a long time." "But,as you look at how long it took to turn Iraq around, it was about 18 months.

VOA: standard.2010.07.22

You take a potato, you turn it around, it looks different.

你拿一个土豆,把它转过来,看起来就不一样了

耶鲁公开课 - 基础物理课程节选

And what can be done to turn it around?

那我们可以做些什么来扭转这个局面呢

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

However,he acknowledged that the unemployment rate is the highest it has been in 25 years, and he said it will take time for the economy to turn around.

VOA: standard.2009.05.09

So we know that it'll go up for one second then it will turn around and come back.

我们知道了,物体在上升一秒后开始下降

耶鲁公开课 - 基础物理课程节选

"It's going to turn around and bind to other RNAs, physically bind to them, in a way that will then determine whether those other RNAs get made into protein or not."

VOA: standard.2010.04.05

So, we know it's going to go up and turn around and come down.

我们知道物体会先上升然后调转方向下落

耶鲁公开课 - 基础物理课程节选

They are not working in a coordinated fashion, but certainly they have got the message that if they don't do something soon, then the turmoil that we are seeing in Greece could easily spread to other countries and that it will be harder to turn around."

VOA: standard.2010.05.25