But Professor Gaechter says his team's theory was that punishment has only low costs because it needs to be used rarely and works as a threat.

VOA: special.2009.03.03

After sod is in place, it needs to be pressed down firmly.

VOA: special.2009.07.07

It needs to be supported and appreciated as a unique place.

VOA: special.2010.01.22

That is why it needs to be strengthened.

VOA: special.2011.04.14

"We need to pass a bill. It needs to be the best bill we can possibly get through Congress.

VOA: standard.2009.09.02

"It needs to be reformed. It's broken." "But spending us into oblivion is not the way to do it."

VOA: standard.2010.03.22

Japan says there are genuine scientific reasons for why it needs to kill hundreds of whales each year in Antarctic waters.

VOA: standard.2010.01.05

"What's on the table so far is quite limited and quite short term, when it needs to be large and long term,".

VOA: standard.2009.12.11

"It is not where it needs to be. But people are no longer talking about the financial system falling off a cliff.

VOA: standard.2009.07.23

The amount of aid that goes to health and vaccines in particular has gone up and it needs to go up even more.

VOA: standard.2010.01.29

"I am satisfied that Operation Panther's Claw has the resources it needs to be successful,"

VOA: standard.2009.07.22

"The Brazilian government deeply regrets,therefore, that the joint declaration has neither received the political recognition it deserves nor been given the time it needs to bear fruit."

VOA: standard.2010.06.09

"But it needs to be done in a security context as well."

VOA: standard.2009.12.30

But she said that if Hamas wants to play a part in peace talks, it needs to meet international terms by renouncing violence and accepting Israel's right to exist.

VOA: standard.2010.03.16