One is a quick-acting "rescue" medicine taken when needed to stop asthma symptoms.

VOA: special.2009.07.28

The president also says he will send the military into battle only when needed, and will give them the necessary training and equipment.

VOA: standard.2009.05.23

She says the only work needed once beets have been thinned is weeding and, when the weather is dry, a weekly watering.

VOA: special.2010.03.02

Verrocchio told his students that they needed to understand the body's bones and muscles when drawing people.

VOA: special.2010.09.15

Water is needed for cooling the body on hot days, and when we are working or exercising.

VOA: special.2010.07.27

"It's times like that when you have such great pride in Americans, when you see somebody do something like that for a smaller sport, certainly a prominent sport, where they needed that funding.

VOA: standard.2010.02.21

"We found that easier access to emergency contraception did help women use the pills more quickly when it was needed, and they used it more often, but despite that increased use and faster use, it didn't reduce rates of unintended pregnancy."

VOA: standard.2010.03.22

"Well,actually I was scheduled to work this morning," . "When I got up at 5:30, I saw on the news that they needed a lot of help, and I called into my job and said I needed to take a short day vacation, because I needed my son to be a part of what was going on."

VOA: standard.2010.01.18