Isaac Newton built on the ideas of these two scientists and others.

VOA: special.2011.06.01

She says these two qualities also define vampires in movies and literature.

VOA: special.2010.01.20

These include obesity, heart disease and type two diabetes.

VOA: special.2009.07.20

BARACK OBAMA: "I am pleased that these two men, elected leaders of Afghanistan and Pakistan, fully appreciate the seriousness of the threat that we face and have reaffirmed their commitment to confronting it."

VOA: special.2009.05.09

To get at these non-mutating parts of the virus, Nabel and his colleagues used a two-step vaccination process, called "prime-boost."

VOA: standard.2010.07.21

There are two major traits among these GE crops: resistance to certain insect pests, and resistance to a weed-killer called glyphosate.

VOA: standard.2010.04.15

That shared interest between Ankara and Tehran may be ultimately the strongest bond between these two neighbors.

VOA: standard.2010.07.26

Officials say these have grown in "scope and scale" as ties between the two countries have blossomed.

VOA: standard.2009.10.26

It was really about these two people would ordinarily never come together who get thrown together and have to navigate how to be together.

VOA: standard.2010.04.30

So within these two things Africa will surely have a lot of hope and confidence that they can do it like how we did it here,".

VOA: standard.2009.10.17

For most of them,everything's rosy. Once dismissed as lowly junior colleges and commuter schools in urban areas where students could walk or take public transit to class, these two-year colleges are attracting tens of thousands of students who would normally enroll in four-year private or state universities.

VOA: standard.2009.12.14