She explains the problems with using human blood.

VOA: special.2009.08.03

President Barack Obama is credited with using the power of Facebook during his 2008 campaign.

VOA: standard.2010.07.23

By using video technology, educators and performers at the center in Atlanta,Georgia can connect with classrooms around the country.

VOA: special.2009.09.23

People are being urged to wash their hands carefully with soap and purified water after using the toilet or changing a baby's diaper.

VOA: special.2010.11.10

It is meant to work with personal computers, smartphones and other devices using different operating systems.

VOA: special.2010.06.22

"I'm using Facebook to contact with my friends, I'm using Skype to contact with my family.

VOA: special.2009.09.14

Experts advise using two or more control methods to deal with weeds.

VOA: special.2009.05.26

And it was Jeremy who kind of had the idea to start using it like a tortilla or a crepe, and just stuffing it with all manner of different things."

VOA: special.2011.08.08

I'm Rich Kleinfeldt with some expressions using the word heart.

VOA: special.2010.07.18

"These creative methods that people have come up with by using wireless technology will be able to be accessed by millions of people, whereas other technology using electricity and landlines would not have been that accessible."

VOA: special.2011.05.16

But now with social networking, Iranians can gather by the thousands on a Facebook group, or communicate using Twitter.

VOA: standard.2010.06.15

The North says it will stop using maritime shortwave radio frequencies with the South and cut off other means of emergency communication.

VOA: standard.2010.05.27

"The Chinese have been using cane toads with their skins,etcetera, in traditional medicines for many,many years now.

VOA: standard.2010.02.07

Before spring training, Rodriguez admitted to using steroids while he played with the Texas Rangers in 2001-2003.

VOA: standard.2009.12.24