The sets on the stage are very simple.

VOA: special.2009.08.05

It has given the world many strange expressions that are not very simple.

VOA: special.2009.01.25

"Let me just explain in very simple terms what synthetic C.D.O.s are.

VOA: special.2010.04.30

Your coin and battery are a very simple radio transmitter.

VOA: special.2010.12.08