United States Agriculture Secretary Tom Vilsack said no one single nation can fight agricultural greenhouse gas emissions and increase food production at the same time.

VOA: special.2010.01.05

It became the fastest-selling U.S.pop single of all-time, and by the end of the decade, was the best-selling single of the 1980s.

VOA: standard.2010.02.18

But he says taking the long view can help provide insights scientists might miss in a snapshot from a single moment in time.

VOA: standard.2010.05.05

At the time,Irma was a single mother, working at every opportunity to support her four children.

VOA: standard.2009.12.25

One man,who did not give his name, has been single for a long time.

VOA: standard.2010.02.13