Walking is safe. And,it is said be to as valuable for one's health as more intense forms of exercise like jogging.

VOA: special.2010.06.08

And one that is moving continues to move at an unchanging speed, so long as no outside force influences it.

VOA: special.2011.06.01

The American government also says a healthy diet is one that is high in fruits, vegetables and whole grains.

VOA: special.2010.06.08

One is the long-distance transport of bees for pollination and the spread of bee diseases from one area to another.

VOA: special.2011.05.24

He says each new version of one bill is weaker and less effective than the one before it.

VOA: special.2010.04.21

Asthma affects more than seven million children each year and is considered one of the leading childhood illnesses.

VOA: special.2009.07.28

Right now they have just the one truck and their business permit is good only in the city.

VOA: special.2010.04.12

It is that time of year again. Warm weather means outdoor music festivals and one of the biggest is happening right now.

VOA: special.2009.05.01

If someone is doing an extremely good job and is very successful, you might say he or she is batting one thousand.

VOA: special.2009.04.12

Some people criticize his art for only showing a false or very limited image of America, one that is white and middle-class.

VOA: special.2010.09.20

If he misses the shot and one his teammates is able to regain control of the ball, it is called an "offensive rebound."

VOA: special.2011.03.25

One suggestion is to remove the center from a loaf of bread and hide a snake inside -- a live one if possible.

VOA: special.2010.07.27

Despite the fact the world is green, covered with plants and trees, there is no one natural dye that makes green,a colorfast,permanent dark green."

VOA: special.2011.06.15

The Grand Canyon in Arizona is one of the largest and most beautiful of all canyons.

VOA: special.2009.10.07