U.S.officials said receiver they arrested Walter Kendall Myers and his wife Gwendolyn after an undercover operation in Washington.

VOA: standard.2009.06.06

So I put my head down and focused on operation technology, focused on the user's experience, and I delivered.

我选择脚踏实地工作，专注于公司的运营，专注于提升用户体验，这一切我都做到了。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

It's very important in the biological operation of human cells and that step is RNA splicing, or processing of this RNA, single stranded RNA that's produced by transcription.

而这对人类细胞生物运作至关重要,这个步骤就是RNA剪接,或者说是对RNA的加工,对转录出的单链RNA进行加工的步骤

耶鲁公开课 - 生物医学工程探索课程节选

The correspondent's interpreter and one of the commandos died in the rescue operation.

VOA: standard.2009.09.09

And for those who still back the Afghan operation, many say Brown's government has not given the troops all the resources required to fight a determined insurgency.

VOA: standard.2009.07.13

The huge Firestone plantation east of the capital,Monrovia, remains the world's largest single natural rubber operation and was one of the first businesses to reopen after Liberia's long civil war.

VOA: standard.2009.09.13

U.S.officials have long said they believe al-Qaida leader Osama bin Laden and his top commanders shifted their base of operation from Afghanistan to Pakistan's largely autonomous tribal regions after coalition forces invaded Afghanistan in 2001.

VOA: standard.2009.10.30

"Now that Operation Panther's Claw has shown that it can bring success and the first phase of that operation is over, it is time to commemorate all those soldiers who have given their lives and to thank all our British soldiers for the determination, the professionalism and the courage that they have been showing,"

VOA: standard.2009.07.27