Because the canyon's environments are so different, these species did not spread beyond the canyon, or even far within it.

VOA: special.2009.10.07

Even those who did not wish to end slavery in the South felt that slavery should not spread further.

VOA: special.2009.03.12

An operation to remove the cancerous cells can cure melanoma if the cancer has not spread.

VOA: special.2010.07.06

With hand tools, he and Rufus Robinson threw dirt on the fire and dug a line to contain it so the flames would not spread.

VOA: special.2009.11.24

Most do not spread malaria. Some of the insects have disease-fighting systems that kill Plasmodium.

VOA: special.2009.12.22

Most do not spread malaria. Some have immune systems that kill Plasmodium.

VOA: special.2009.12.07

The cancer had not spread to other parts of the body yet.

VOA: special.2009.09.01

Treasury chief Timothy Geithner is discussing European measures to stabilize the ailing euro currency in a bid to reassure markets the crisis will not spread throughout the eurozone.

VOA: standard.2010.05.26

"For the health sector, it will be to be ready to cope with a disease, which will spread in areas where they do not spread or which may become more serious,".

VOA: standard.2009.08.30

Medical workers in Haiti are now trying to spread the message not to use river water without some form of purification.

VOA: special.2010.11.10

Yet he did not want to see slavery spread to other parts of the United States.

VOA: special.2009.07.16

Do not put words in my mouth." Information is often spread through word of mouth.

VOA: special.2010.06.20

Mr.Rinaudo says government officials and nongovernmental organizations were not the ones who spread the idea.

VOA: special.2011.05.10

Martian methane is also unusual because it is not evenly spread over the planet.

VOA: special.2009.12.30

He could not support a bill to let slavery spread into the territories.

VOA: special.2009.03.12

She said the disease spread is not directly connected to climate change.

VOA: special.2009.04.13

Sadness also spread among friends, but not as much as happiness.

VOA: special.2009.01.21

They simply did not want slavery to spread to other areas.

VOA: special.2009.05.07

People who opposed slavery did not want it to spread.

VOA: special.2009.04.30

Health officials did not know how deadly the virus would be, who would be most vulnerable, how quickly it would spread and whether it could be contained.

VOA: standard.2010.04.29

"And so therefore we have taken a deliberately hardline approach to this regime because we do not want this coup culture to spread elsewhere in the Pacific."

VOA: standard.2009.11.04

"Like malaria will spread to areas which are not affected right now."

VOA: standard.2009.08.30

"But it also should be an honest debate, not one dominated by willful misrepresentations and outright distortions, spread by the very folks who would benefit the most by keeping things exactly as they are,".

VOA: standard.2009.08.22

"However,if we begin to see numbers of people who are getting infected who have not any contact with such persons, then this really becomes much stronger evidence that we are seeing community to community spread."

VOA: standard.2009.05.14

The Mexican tourist, who is in stable condition, is the only case of swine flu in Hong Kong so far, but Dr.Chow says the city should not be complacent, because the virus continues to spread worldwide.

VOA: standard.2009.05.08