That frustrated U.S.President Barack Obama and other world leaders' efforts to forge an international climate agreement at a U.N.summit in Copenhagen last December.

VOA: standard.2010.08.03

When you have got another party that says, 'We do not want to do anything about it,' of course people are going to be frustrated."

VOA: standard.2010.02.06

President Obama says he is angry and frustrated by oil executives' response to the catastrophic spill, after a BP oil rig blew up last month off the Louisiana coast.

VOA: standard.2010.05.14

"When unemployment is 9.7 percent, when we are still digging ourselves out of an extraordinary recession, people are going to be frustrated, and they are going to be looking to the party in power to try to fix it.

VOA: standard.2010.02.06

"What we are seeing is that the aid effort is beginning to scale up. We are all frustrated by the fact that there is not as much aid on the streets as anybody would like, but I think you will see that effort scaling up very rapidly,".

VOA: standard.2010.01.18