Scientific American magazine says huge lasers turn only about twenty to thirty percent of the energy they use into a laser beam.

VOA: special.2010.09.01

The new administration says it will hold banks responsible for how they use taxpayers' money, and will report details on a Web site.

VOA: special.2009.02.13

They use their influence. They use their political allies to scare and mislead the American people.

VOA: special.2009.08.14

They use the herb to help fight unpleasant conditions at the end of their reproductive years.

VOA: special.2009.05.19

"Then the structural engineers take that information and they use it to detail the building in terms of, is this going to be a steel structure?

VOA: special.2011.03.28

And how the systems that we have designed for the house and we've used for the house how efficient they are and how little energy they use."

VOA: special.2009.10.27

They use their natural sense to do something instead of their learned knowledge.

VOA: special.2010.05.02

They use the example of a woman named Saima who lives in Pakistan.

VOA: special.2010.06.16

"The thing about clay is every culture knows clay, because they use it.

VOA: special.2009.09.09

Then they use radio frequency energy to heat the tissue around the catheter.

VOA: special.2010.03.02

They use the expression when they feel they are losing control.

VOA: special.2009.10.25

They use biomass fuels like wood,crop waste, animal waste or coal.

VOA: special.2010.02.01

They use a small amount of words to communicate big ideas.

VOA: special.2010.04.18

They use boys as soldiers and girls as sex slaves.

VOA: special.2009.06.01