Demong says that part of the challenge of the ski jump is to get into a good rhythm and stay there.

VOA: standard.2010.01.31

Unless carbon emissions are brought under control,he says, the challenge of adapting to global climate change will become ever more difficult.

VOA: standard.2010.06.14

The challenge is to pick out oil from other dark spots, such as shadows made by clouds or patches of seaweed.

VOA: standard.2010.07.05

Edward Damiano, a biomedical engineer at Boston University in Massachusetts, knows firsthand the challenge of managing juvenile diabetes.

VOA: standard.2010.04.15

The challenge for designers was to create a vehicle with the protection provided by an MRAP but about 25 per cent lighter.

VOA: standard.2009.11.02

"Challenging." But at the science cafs in St.Louis, scientists and non-scientists alike seem up to the challenge.

VOA: standard.2010.05.04

Regional diplomats say the challenge for the new president will be forcing Bissau's military to respect civilian leadership and keep out of politics.

VOA: standard.2009.07.26

"It is the challenge of the 21st century," "We have to acknowledge, accept and work with it.

VOA: standard.2009.05.13

With those legal and regulatory frameworks in place, President Sirleaf says the challenge now is making sure that they continue to be implemented properly.

VOA: standard.2009.08.14

So we said we will accept the challenge of raising up this program here in Kenya."

VOA: standard.2010.05.30

Writer-director Richard Linklater believes any moviemaker would be daunted by the challenge of telling the story of the man behind the great American film Citizen Kane;

VOA: standard.2009.12.17

"This is the challenge we have now: to open a lot of those doors."

VOA: standard.2009.08.15

"We recognize that as we move ahead there are huge challenges ahead of us, particularly the challenge of overcoming the divisions that have occurred in this country.

VOA: standard.2010.05.21

So the challenge for us as an international community is to try to make sure we're marshaling our resources, our efforts,so that we can do the job and leave.

VOA: standard.2009.03.23