It was responsible for more than four and one-half percent of all the years people lived with disability.

VOA: special.2009.09.08

What other people call content is a device like any other, and it engages in the struggle for dominance with all the other devices that one can identify as aspects of literature."

别人所说的内容只是另一种方法而已，它为了争夺支配地位历经斗争,胜利的那些才能被称为文学性“

耶鲁公开课 - 文学理论导论课程节选

And we can look at precisely why that is by looking at the equations for the energy levels for a hydrogen atom versus the multi-electron atom. So, for a hydrogen atom, and actually for any one electron atom at all, this is our energy or our binding energy.

而且我们可以精确地看看,为什么是这样的,通过看对于氢原子和,多电子原子能级的方程所以对于氢原子，事实上对于任何一个电子，这是我们的能量或者我们的结合能。

麻省理工公开课 - 化学原理课程节选

Pneumonia and diarrhea account for over one third of all deaths among children under the age of five.

VOA: standard.2009.12.28

"Now we have this technology for this one community to talk to another community, and all these different conversations happen at the same time.

VOA: standard.2010.07.23

At most American colleges, undergraduate students choose one area of study, like English or biology, and focus on it for all four years of their education.

VOA: standard.2010.05.12

While the internet and social networking sites are helping people connect with each other and breaking social barriers inside Iran, it's also giving Iranians all over the world a connection with one another, and support for each other even from thousands of miles away.

VOA: standard.2010.06.15