The cows wear collars around their necks that identify them to the system.

VOA: special.2009.05.12

The major work on the Interstate Highway System was completed around nineteen-ninety.

VOA: special.2010.01.11

NASA hopes that Dawn's year long orbit around Vesta will help scientists learn more about the development of the solar system, and how asteroids and other space objects were created.

VOA: special.2011.07.27

"We will use the tremendous capabilities of this ion propulsion system to climb out of orbit around Vesta, travel for almost another three years through the asteroid belt to dwarf planet Ceres and then go into orbit around Ceres and undertake the same kind of measurements there that we'll be doing at Vesta.

VOA: special.2011.07.27

I can tell you around 50 percent of the total water that we produce becomes non-revenue for the system."

VOA: standard.2010.08.04

"Now they are checked by Interpol. Before we did not have a communications system that allowed information to be exchanged rapidly around the world with all of our countries.

VOA: standard.2009.11.09

But given the fact that this current weather system is forecast to be around for a few more days, the trouble brought on by the snow and wind will be felt well into the new week.

VOA: standard.2009.12.21

But he warns it will not be a fast recovery. "The effects of some of the government stimulus kicking in, some of the effects of these attempts to stabilize the financial system will all lead to things turning around.

VOA: standard.2009.03.18

"If we are able to do a few of the things that we are promoting around the ability to take costs out of our system, I think we can be very,very vibrant, and very relevant going forward."

VOA: standard.2010.04.13

To put it mildly, the group of friends I've had over the years and ran around together with, it was originally seven of us and the healthcare system in the United States has killed us all but two,".

VOA: standard.2009.06.13