This is a big change from earlier models where NASA led and controlled the development of space vehicles.

VOA: special.2010.04.28

"It's a big deal. How big a deal you have to measure piece by piece but clearly it is the first major change in our health care system since nineteen sixty-five so that's a long time coming."

VOA: special.2010.03.27

President Obama said Senate Democrats now have the 60 votes they need to force big U.S.financial firms to change the way they do business.

VOA: standard.2010.07.13

In the big cities, the traditional affinity to the precious metal is waning, as trends change.

VOA: standard.2009.09.19

Deforestation is one of the big culprits in climate change.

VOA: standard.2010.06.17