They say the technology for making flutes out of ivory is much more complex than for making one out of bone.

VOA: special.2009.08.18

Or,they can be more complex such as using liquid glazes to change the color or shininess of the clay surface.

VOA: special.2009.09.09

His team has found that even more complex movements can be performed by TMR patients with improved kinds of prosthetic devices.

VOA: special.2009.03.10

The debate now,he said, is more complex.

VOA: special.2010.04.16

"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

Cardiologists, such as Dr.Gerard Martin, say that within the last four years, doctors have learned how to perform more complex heart surgeries using catheters."

VOA: standard.2010.01.01

But increasing trade with African countries may be more complex than it at first appears.

VOA: standard.2009.08.08

"I know that,if anything, the Mideast is more difficult and more complex.

VOA: standard.2009.11.25

Detective Superintendent Julian Gregory will say only that the case is complex and will take more time to finish.

VOA: special.2010.04.27

The surgery can sometimes be complex, and may require more than one operation to correct.

VOA: special.2009.12.22

As Katharine Hepburn became older, she played more and more wise and complex characters.

VOA: special.2009.09.20

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

He called Iran "one of the most complex national security problems" the United States has faced in his more than 40 years in government.

VOA: standard.2009.12.12

But he warned 2010 would be "a more complicated and complex year", domestically and internationally.

VOA: standard.2010.02.14