BP is trying different ways to stop the leak from a damaged undersea well and control the spilled oil.

VOA: special.2010.05.04

It takes a bit of control to stop.

需要一定的控制力才能停下来

耶鲁公开课 - 心理学导论课程节选

What caused it? It was caused maybe it's oversimplifying it it was caused by a change in our resolve to let's get inflation under control - and a willingness to accept the recession to stop the advance of inflation.

是什么引发了它,它是因为-也许过分的单纯化它,它是由于一个为了,让我们将通货膨胀控制在手中的解决方案,和一个接受经济衰退的愿望,结束通货膨胀的继续上涨所导致的。

耶鲁公开课 - 金融市场课程节选

Experts say his work during the outbreak helped stop the Ebola virus from spreading out of control.

VOA: special.2009.01.27

Another problem is money. The World Health Organization says the Stop TB effort needs $2 billion to carry out its TB care and control program in 2010.

VOA: standard.2009.12.09