An impacted wisdom tooth is one that fails to completely rise through the gums -- the term is erupt.

VOA: special.2011.08.10

One reason is that heat from the sun can go through many of the building materials commonly found in cities.

VOA: special.2010.03.02

Women are also advised to continue treatment through the recommended end of breastfeeding, when the baby is one year old.

VOA: special.2009.12.02

Through her lifelong work for education she became one of the most famous women in nineteenth century America.

VOA: special.2010.06.27

Sue obeyed. After the beating rain and fierce wind that blew through the night, there yet stood against the wall one ivy leaf.

VOA: special.2009.08.01

To reach the park,visitors drive through the Guadalupe Pass, more than one thousand five hundred meters high.

VOA: special.2010.04.26

"I thought that sooner or later one thing was sure to happen: The first real test once he was through school would ruin him.

VOA: special.2009.01.03

The shape of a snow crystal may change from one form to another as the crystal passes through levels of air with different temperatures.

VOA: special.2010.01.05

I thought that sooner or later one thing was sure to happen: The first real test once he was through school would ruin him.

VOA: special.2010.03.27

One of those feelings might be the fun of a sleigh ride through the snow.

VOA: special.2009.12.25

It said the forests and undergrowth were so dense, no one could get through them.

VOA: special.2009.07.20

Electromagnetic waves or energy passed through the air from one device to the other.

VOA: special.2010.12.08

And,when your holiday is finished, you can drive slowly up Highway One, through the many other Florida Keys, stopping to enjoy each one on the way home.

VOA: special.2010.03.22

One of their big Motown hits was "I Heard It through the Grapevine."

VOA: special.2009.05.11