As a result,those babies can have higher stress levels than those born without the help of the operation.

VOA: special.2009.11.24

I don't know if you know how a spark plug works, but for the electrical current to fly into operation in a spark plug, the two points of contact have to be gapped.

我不知道你们是否知道,火花塞是怎样工作的，在电流通入火花塞中使它运转之前，两个接触点之间需要有空隙。

耶鲁公开课 - 文学理论导论课程节选

We'll talk about how your normal valves function inside your heart and how your heart couldn't work in the way that it did if it didn't have valves that were doing a very complex operation many many times a day.

我们会讨论,正常的瓣膜在心脏中如何工作,以及没有这个,每天不停完成很多复杂任务的心脏瓣膜,心脏为什么,就不能正常工作了

耶鲁公开课 - 生物医学工程探索课程节选

A newspaper may report, for example, that police have arrested the suspected kingpin of a car-stealing operation.

VOA: special.2009.11.29

Cleveland decided to have the operation on a friend's boat in New York Harbor.

VOA: special.2010.06.17

"Now with this more intense fighting and military operation inside Waziristan, we have a daily outflow of from the area."

VOA: standard.2009.10.17

Soldiers have launched a massive rescue operation. The army has a heavy presence in the area, which shares a border with China.

VOA: standard.2010.08.06

Search and rescue teams have arrived from several countries and more are on the way, and the United States has embarked on a massive relief operation.

VOA: standard.2010.01.14

Some news agencies have compared the operation to a military occupation.

VOA: standard.2010.01.26

They must have kept him under surveillance for a while." U.S.officials have been quoted as saying the operation Monday was launched when it became clear their target was traveling in an area away from heavy population.

VOA: standard.2009.09.15

The military plan is that we will have to do a rescue operation because now we have to rescue the civilians first, in order to go for the rest of the LTTE cadres hiding in that area,"

VOA: standard.2009.04.06

"They have not got their acts together. So I think the Swat operation has sent a very strong signal and if the government now starts an operation in even Waziristan, which is considered as a hard nut, I think it has good chances to succeed."

VOA: standard.2009.09.14