But they can be very aggressive and protective of their territory.

VOA: special.2009.08.19

But a year later, economist Alice Rivlin says aggressive actions taken by the Obama administration, appear to have stopped the bleeding.

VOA: standard.2010.01.15

But it urges Washington to become far more aggressive in its support of democracy in the Middle East.

VOA: standard.2010.05.19

But it adds that, even if aggressive policies are put in place to reduce future carbon emissions, steps must be taken now to adapt to greenhouse gases already in the atmosphere;

VOA: standard.2010.06.14

"Fires,fires,fires," "But we are very fortunate that we have the best and the most aggressive, best trained, most courageous firefighters in the world and that's why we are able to push back very heavily."

VOA: standard.2009.09.01