The surprise visit came at a time when the United States and other countries have been putting more pressure on North Korea.

VOA: special.2009.08.08

Benjamin Hooks was born in Memphis,Tennessee, at a time when the southern city discriminated against blacks in all areas of public life.

VOA: special.2010.04.24

For example,she wore men's pants as clothing at a time when women wore only skirts or dresses.

VOA: special.2009.09.20

He called it "the height of irresponsibility" at a time when they were asking taxpayers for help.

VOA: special.2009.01.31

She wrote important stories at a time when women had few social or political rights.

VOA: special.2010.04.25

"At a time when the global population is growing, our global climate is changing.

VOA: special.2009.11.23

He told students it was time for them to learn what it means to be a human being on Earth at a time when every living system was failing.

VOA: special.2009.06.05

At a time when many schools have cut back on their physical education programs, Calvary's weekly hike day is unique.

VOA: standard.2010.06.25

But Warren says the good news comes at a time when researchers are facing a big obstacle - limited funding.

VOA: standard.2010.07.15

At a time when Country-pop is dominating the genre, the label allowed Easton to stay true to his traditional roots.

VOA: standard.2010.04.09

"At a time when we're fighting two wars and facing a serious deficit, this would have been an inexcusable waste of money.

VOA: standard.2009.07.21

He says that sends an important signal to the world at a time when the Iraqi government is being tested at home.

VOA: standard.2009.11.08

"At a time when the headlines are filled with challenges, the relationship between the United States and India is a good news story.

VOA: standard.2009.07.20

Economists say India has bought gold to diversify its assets and hold fewer dollars at a time when the U.S.currency is weakening against other currencies.

VOA: standard.2009.11.06

And,these are occurring at a time when the global economic crisis is making it more difficult to maintain good health, especially in the developing world.

VOA: standard.2009.05.18

All of this comes at a time when Poland's confidence in the U.S.is waning.

VOA: standard.2009.10.22

Some human rights groups and Roma leaders say the attacks come at a time when right-wing extremists are searching for scapegoats for Hungary's current economic crisis.

VOA: standard.2009.08.22