This is a common problem for millions of children around the world and not just at school, but also at home.

VOA: special.2009.12.21

He said this is often seen as a problem for Mali.

VOA: special.2010.03.30

This year,it is presented for solving a problem in biology.

VOA: special.2009.12.08

But is this going to be a problem for people trying to communicate in Iran?

VOA: standard.2010.06.15

"So,this kind of cyclical problem of displacement is extremely unsettling for the population and limits the possibility for the population to reinvest in economic activities such as agriculture,commerce and so on and so forth,".

VOA: standard.2009.09.25