Tornadoes form when winds blowing in different directions meet in the cloud and begin to turn in circles.

VOA: special.2009.06.09

Tornadoes form when winds blowing in different directions meet in the clouds and begin to turn in circles.

VOA: special.2010.05.11

Here,he uses a set of buttons attached to a computer to make the silent robot move forward, backward or around in circles.

VOA: special.2009.12.17

For many years there were different ways that the stars were shown, including in circles and rows.

VOA: special.2010.04.02

They stretch from the north pole to the south pole, and back again in great circles of the same size.

VOA: special.2010.07.14

The debris now circles the Earth in orbits from two hundred kilometers to over three thousand eight hundred kilometers.

VOA: special.2009.04.01

They measured the rings,or circles, inside thousands of ancient trees in more than three hundred places.

VOA: special.2010.05.25

Huge rounded and box-like buildings have windows in the shape of circles and triangles.

VOA: special.2011.07.24

Two hawks flew together in slow-moving circles far below Sylvie.

VOA: special.2010.04.03

Love is an overused word in some circles,but for Wassim, it still holds terrific power.

VOA: standard.2010.02.13

He is praised in many political and social circles in Zimbabwe for his tolerance.

VOA: standard.2009.09.15

"So there is what seems to be a growing body of opinion in Russia among leadership circles that Russia has to start investing in its own technology sector."

VOA: standard.2010.06.18