They hope that future synthetic cells can make useful bacteria for products like bio-fuels or vaccines, and to clean up polluted water.

VOA: special.2010.07.20

Remove dirt from the wound and press on it with a clean cloth or piece of clothing.

VOA: special.2009.08.11

But you can use a swab or cloth to clean the outer part of the ear.

VOA: special.2010.03.31

But it does not keep people from getting health care or clean water to their houses."

VOA: special.2009.11.28

Someone would have to clean the snow off the sidewalk, either him or his father.

VOA: special.2009.03.07

And,for some reason, it could mean to organize,or clean.

VOA: special.2010.03.07

Now UNESCO is warning the Lebanese government to clean up Qadisha or it could be removed from the World Heritage list.

VOA: standard.2010.08.05

Bennett says clean drinking water is the next big concern, especially to prevent an outbreak of diseases such as diarrhea or cholera.

VOA: standard.2010.08.02

She says that the goods and services provided by nature - like clean air, rain or fertile soils - should not be taken for granted.

VOA: standard.2010.02.24

He says Iran must come clean about its nuclear program or face the consequences.

VOA: standard.2009.09.25