In simple terms, think of snow or ice as a filter.

VOA: special.2010.01.05

"In simple terms, things such as type two diabetes, cardiovascular diseases, infectious diseases of a variety of types, and lung diseases and so on, are all found at higher than the comparison rates within the country, in many of these countries with indigenous populations."

VOA: special.2009.07.20

The Confederate commander gave up. The terms of surrender were simple.

VOA: special.2009.11.26