The expression probably comes from the physical act of turning your back toward someone, instead of speaking to him face-to-face.

VOA: special.2009.12.13

There were many changes in the social customs and day-to-day life of millions of Americans during the administration of President Calvin Coolidge.

VOA: special.2011.01.06

It has easy appeal for the bully because it does not involve face-to-face contact and it can be done at any time.

VOA: special.2010.04.22

Phase five is marked by human-to-human spread of the virus into at least two countries in the same area of the world.

VOA: special.2009.05.06

And an international movement known as hospice has helped bring attention to difficult-to-treat pain for the dying.

VOA: special.2009.02.10

"We know only about thirty-three percent of women have access to a program that actually has services in place to prevent mother-to-child transmission.

VOA: special.2009.07.29

He led the team of scientists. They developed a new method of making maps of hard-to-reach areas.

VOA: special.2009.11.17

This is back-to-school season. But the National Retail Federation says school-related sales are down from last year.

VOA: special.2009.08.21

For example,there are programs in Africa that teach the skin-to-skin method, also known as kangaroo care.

VOA: special.2009.10.26

These are all examples where CPR with mouth-to-mouth breathing may be more helpful that hands-only CPR.

VOA: special.2009.06.09

He takes everything KaBOOM knows about building playgrounds and putsthat information online in a simple,easy-to-use design.

VOA: special.2010.11.05

These easy-to-hold devices let you read and watch media or search the Internet and order products.

VOA: special.2010.01.26

They were asked about their diet and day-to-day activities, as well as any pre-existing diseases.

VOA: special.2010.06.30

And unlike a machine, the skin-to-skin contact provides two kinds of warmth physical and emotional.

VOA: special.2009.05.25