The cost depends on the difficulty of the subject and how soon the paper is needed.

VOA: special.2009.04.23

But he says there are challenges, including the difficulty in getting the plan approved by the United States Congress.

VOA: standard.2009.12.11

"The rubber chips are available. The biomass is here. The difficulty is the distribution is not there,"

VOA: standard.2009.09.13

But some foreigners living here say one factor that hurt's South Korea's reputation is the difficulty many international companies have doing business here.

VOA: standard.2009.11.05

Edward Lawler at the University of Southern California says these companies may now have difficulty getting and keeping high-quality employees.

VOA: special.2009.10.30

Jackie Robinson had difficulty on and off the baseball field, but he did not let that interfere with his game.

VOA: special.2009.04.05

The study found that families in seventeen million households had difficulty getting enough food at times during the year.

VOA: special.2009.11.23

And that's probably the simplest of all of them." The students first listed the problems in order of difficulty.

VOA: special.2010.03.11

These include trouble walking, weakness especially on one side of the body, difficulty seeing and difficulty speaking.

VOA: special.2009.08.12

That means their households, at some time during the year, had difficulty providing enough food for all members because of a lack of resources.

VOA: special.2009.11.23

The opposition was divided. And Van Buren won the election with little difficulty.

VOA: special.2009.01.01

He wore it without difficulty. A newspaper printed a story about the operation.

VOA: special.2010.06.24

Those who suffer from the disease may also have difficulty naming it.

VOA: special.2009.01.06

Also,victims of the disease have increasing difficulty learning and storing new information.

VOA: special.2009.09.15