But he says there must be a "clear timetable" for talks about protecting their security without threatening other people's security.

VOA: special.2009.05.23

But you must be careful. It is easy to get lost in the waves of moving sand especially during sandstorms.

VOA: special.2010.01.04

But she says it must be shown scientifically that cord blood stem cells cause improvement, and not other reasons.

VOA: special.2011.02.01

The president said reform must be comprehensive, dealing not just with future immigrants but also those here now.

VOA: special.2010.07.03

We are not hostile to them. But we believe they must be controlled to serve the public good."

VOA: special.2010.08.12

But the Global Heritage Fund says increasing the number of visitors to an area must be done responsibly.

VOA: special.2010.11.03

But he also said the government must be willing to spend extra money to prevent people from starving.

VOA: special.2011.03.10

But now -- she is dead,of course, but it is all right it must be all right,somehow.

VOA: special.2009.10.31

But red meat and meat that will be sold in other states must have federal inspection.

VOA: special.2010.08.03

But for football glory, the World Cup must be a part of the journey.

VOA: special.2010.06.09

But with the Confederacy being almost lost, something decisive and great must be done.

VOA: special.2010.01.07

But in other cases, the mines must be carefully dug out by hand.

VOA: special.2010.05.03

But he also said Cuba must be treated as an equal.

VOA: special.2009.04.18

He must be opposed to slavery, but not too extreme.

VOA: special.2009.06.11