In one study,infected mothers began to take three anti-H.I.V.drugs while breastfeeding for up to six months.

VOA: special.2009.07.29

For example, if one bracket a second was filled out, it would take 292 trillion years to fill out all possible brackets,".

VOA: standard.2009.03.25

Lieutenant General Ronald Burgess response this question from Levin, "With the installed centrifuges that they have, how long would it take,approximately, to produce enough highly-enriched uranium for one nuclear weapon?"

VOA: standard.2010.04.14

"Agriculture,the military, the business community,industry, and service jobs all take about so it's really good for us because if one sector is a little bit slow or has a downturn, the other sectors can pull it out."

VOA: standard.2010.08.10

(Recording) Yoon says the North Korean leader is trying to "lower his son down safely from the back of a tiger, without getting eaten" a metaphor referring to Kim Jong Il's apparent plans for his youngest son to take over one day.

VOA: standard.2009.10.23