But counting the world's third largest population -- about three hundred nine million by current estimates -- is no easy job.

VOA: special.2010.03.20

For most of us, we can go up to three dimensions because we know we live in a three-dimensional world.

对于大多数人来说,我们最多可以考虑三维,因为我们生活在一个三维世界

耶鲁公开课 - 基础物理课程节选

There are only three people left in Britain who fought in World War One, only three, and they're about 110-years-old or something like that.

在英国,一战老兵,只剩下三个了,就三个,他们得有,大概110岁

耶鲁公开课 - 1871年后的法国课程节选

You really have to work at it." Junior Achievement says three hundred eighty-five thousand volunteers support its programs around the world.

VOA: special.2009.11.27

We are able to talk about the fact that two plus one equals three, but it's not as though we ever come across numbers-- number three itself--anywhere in the empirical world.

我们可与去探讨,二加一等于三的这个事实,但是我们不可能有一天真的碰到数字,在现实世界中碰到个叫"数字三"的东西

耶鲁公开课 - 死亡课程节选

This three-week event brings eight hundred artists to the city to celebrate the arts and culture of the Arab world.

VOA: special.2009.03.11

Their study considers painting sixty-three percent of rooftops white in one hundred large cities in warm areas around the world.

VOA: special.2009.06.19

Since nineteen fifty-three, more than ten thousand people have attempted to climb to the top of the world's highest mountain.

VOA: special.2010.06.30

Joseph Pulitzer bought the New York World in eighteen eighty-three and used it to improve the lives of workers and the poor.

VOA: special.2009.04.20

In nineteen forty-three, George Moriarty wrote a song designed to support American forces fighting in World War Two.

VOA: special.2011.04.04

The Mount Vernon hotel was the largest in the world when it was built in eighteen fifty-three.

VOA: special.2009.06.01

In nineteen forty-three, Fala appeared in a short movie about life in Washington during World War Two.

VOA: special.2009.02.23

The eighty-three kilogram satellite, called Sputnik, had two radios that sent signals as it circled the world.

VOA: special.2009.06.10

He set new records when he flew his own airplane around the world in nineteen thirty-three.

VOA: special.2009.03.18

It was nineteen thirty-three. Only six years earlier Charles Lindburgh became famous around the world as the first person to fly alone across the Atlantic Ocean.

VOA: special.2011.04.27

Three-person teams from each school had five hours to solve eleven real world problems.

VOA: special.2010.03.11

The World Trade Center opened in nineteen seventy-three.

VOA: special.2011.04.01

The top-three teams in the six-nation group advance to next year's World Cup finals in South Africa.

VOA: standard.2009.06.07

Three-quarters of the world's AIDS deaths in 2007 were in sub-Saharan Africa where most health official recommend condoms as a way to prevent its spread.

VOA: standard.2009.03.22

Three-quarters of the world's AIDS deaths in 2007 were in sub-Saharan Africa where most health officials recommend condoms as a way to prevent its spread.

VOA: standard.2009.03.20

"Three hundred and fifty million human beings in the world are infected with Hepatitis-B virus.

VOA: standard.2010.02.16

Three hundred million people in the world are infected with Hepatitis-C virus.

VOA: standard.2010.02.16

And Asamoah Gyan, who has a team-leading three World Cup goals for Ghana in South Africa, says "The Black Stars" are delighted to be representing Africa at this stage.

VOA: standard.2010.07.01

The title came in the first year of the Yankees' new Japan's Hideki Matsui was voted the Series' Most Valuable Player after he hit 615 with three home runs and eight runs batted in (RBI), including a World Series record-tying 6-RBI performance in Game 6.

VOA: standard.2009.12.24