Kyrgyzstan's five-day-old . provisional government is vowing to use the country's military to launch a special operation to neutralize President Kurmanbek Bakiyev if he does not resign.

VOA: standard.2010.04.12

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

The reported advances near the Afghan border come a day after army officials took journalists into the region for the first time since the operation started in mid-October.

VOA: standard.2009.10.30