Another senior defense official, who spoke on condition of anonymity, said last week that any change in the complex series of agreements could unravel the entire plan, which was 15 years in the making.

VOA: standard.2009.10.18

In the nineteen nineties, Gebisa Ejeta and another Purdue researcher, Larry Butler, identified the complex relationships between Striga and sorghum plants.

VOA: special.2009.06.16

The archeologists say its discovery helps show that early modern human beings in Europe had a complex and creative culture.

VOA: special.2009.08.18

And,he says that is good news because the world needs creative thinkers to help solve increasingly complex problems in the future.

VOA: special.2009.04.24

The puppeteers train for many years to move as one in bringing the puppet to life to act in complex theater productions.

VOA: special.2009.09.23

Calculating building height was not a complex measurement in the late nineteenth century with early skyscrapers like the Home Insurance Building in Chicago.

VOA: special.2010.03.31

Many images in the movie are based on complex mathematical calculations about space gathered by scientists.

VOA: special.2010.09.29

In Indonesia, the batik method of dying fabric involves using wax to make complex patterns.

VOA: special.2009.11.04

After completing their studies, Sudanese students are expected to return home with the skills necessary to help deal with the complex causes of conflict in the country.

VOA: special.2009.01.28

But in addition to their high cost - three times that of a Humvee - the M-ATVs are mechanically complex.

VOA: standard.2010.08.01

"Especially in sequels as the franchises get more complex, I don't always remember what happened in the last movie.

VOA: standard.2010.05.19

"Young people have emphasized salaries to support their families, because in many cases the military industrial complex has little money,"

VOA: standard.2010.02.03

Many of them may live in the huge low-income housing complex that has just been named in Justice Sotomayor's honor.

VOA: standard.2010.06.05

More than 1,000 pages long, START-1 is one of the most complex treaties in history, dealing with reducing nuclear weapons.

VOA: standard.2009.04.08