Recently,the television cable network C-Span carried out its second study about the greatest American presidents.

VOA: special.2009.02.27

They will not be met easily or in a short span of time.

VOA: special.2010.01.23

It is the largest single-span concrete arch bridge in the Western Hemisphere.

VOA: special.2010.10.27

They are serious and they are many. They will not be met easily or in a short span of time.

VOA: standard.2010.01.15

But since the St.John's curriculum aims to span almost all of Western culture, students study every branch of the liberal arts - including music.

VOA: standard.2010.05.12

Here in the U.S., the rate of obesity doubled over a span of 16 years.

VOA: standard.2010.08.10

At a news briefing, Assistant Secretary of State for South and Central Asian Affairs Robert Blake said the sides hope to conclude two related agreements during the Clinton visit, which will span four days.

VOA: standard.2009.07.15