But in the last twenty years, H.I.V.and the collapse of the Soviet Union helped raise death rates in thirty-seven countries worldwide.

VOA: special.2010.05.05

But by the time he was thirteen years old, he was winning against players two times his size and age.

VOA: special.2010.02.07

The ILO notes that child labor is decreasing worldwide, but at a much slower rate than four years ago.

VOA: special.2010.05.17

But ten years later, a similar accusation by another boy led to a criminal trial which began in two thousand five.

VOA: special.2009.07.05

But after years of building loyalty, the Japanese company may have put its quality brand name at risk, at least temporarily.

VOA: special.2010.02.05

But a few years later, the high sharp voice of Hank Williams would cut like a knife through the music world.

VOA: special.2009.11.22

She studied drama at Northwestern University in Evanston,Illinois for two years but left to go to New York City.

VOA: special.2011.02.27

But he agrees that in recent years, many companies have tied pay to short-term performance, instead of their long-term health.

VOA: special.2009.10.30

But in two thousand four, after years of studying cancer, Anita Roberts learned that she herself had the disease.

VOA: special.2010.05.18

But a national survey found that in recent years foreign language teaching decreased in public elementary and middle schools.

VOA: special.2010.06.17

But those observations were made years ago and NASA scientists had not trusted the results without clear confirmation.

VOA: special.2009.09.30

But forty years later, "Sesame Street" is the longest running children's television program in the United States.

VOA: special.2009.11.27

The changes are expected to cost about nine hundred forty billion dollars over ten years, but also help reduce the federal budget deficit.

VOA: special.2010.03.24

But in 2004, after years of studying cancer, Anita Roberts learned that she herself had the disease.

VOA: special.2009.01.27