Today,the solution to the problem is so common that it is difficult to understand that there was a problem at all.

VOA: special.2010.07.14

So,just being able to pick one of those up will help our visitors understand how difficult portability was about thirty years ago."

VOA: special.2011.02.15

So they quickly passed a bill that made it much more difficult for Chinese citizens to come to live in the United States.

VOA: special.2010.03.11

For example, celiac disease is difficult to identify because the signs of the disease are so common.

VOA: special.2009.04.14

For example,celiac disease is difficult to identify because the signs of the disease are so common.

VOA: special.2010.06.15

So we say a difficult or impossible job is like herding cats.

VOA: special.2009.09.27

So it might be difficult to imagine anything twice as big.

VOA: special.2009.09.22

So it is difficult to see the animals in the sand.

VOA: special.2010.01.04

It would be difficult, even painful,to do so.

VOA: special.2009.12.06

So when you talk to class four, he says,then it is difficult to teach the little kids in class one.

VOA: standard.2010.02.25

The Dutch have won all four of their World Cup matches so far, and Brazil coach Dunga describes them as a very difficult opponent.

VOA: standard.2010.07.01

"I was one of these teenagers, and so I know how difficult it can be to break this habit when it's been with you for a long time,".

VOA: standard.2009.06.22

It wasn't so business-like that it was uncomfortable or difficult or surprising.

VOA: standard.2010.05.06

It was really difficult for me to shoot the old-style 'gunslinger' guns because I have tiny little baby hands and they are really large and heavy, so just the physicality of actually having to pull that off was really difficult.

VOA: standard.2010.06.20