"There will be operation in this area. But it is now a matter of military judgment (of) what is the appropriate time."

VOA: standard.2009.10.12

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

"They said,without this service, NGOs [non-governmental organizations and agencies will be unable to reach operation areas in the east and south of the country, and it is an area that is particularly insecure and difficult,"

VOA: standard.2009.08.02

British Defense Secretary Bob Ainsworth said in the House of Commons that government is doing all it can to adequately protect troops in Afghanistan and he promised more assets would be moved into the theater of operation, but he underlined the mission will remain dangerous.

VOA: standard.2009.07.13