Origin of one-to-one
Examples from the Web for one-to-one
The very fact of depicting at one-to-one carries special representational weight.
“The closest I came to discussing this was in February 2009 when I had a one-to-one meeting,” Coltart said.In Zimbabwe, a Longtime Foe Sees a Different Side of Robert Mugabe|Eli Lake|May 23, 2012|DAILY BEAST
One-to-one relationships beg for attention as your ruler Pluto is challenged by Venus.
Here are a few basic suggestions: In baking, sorghum can be used in place of molasses on a one-to-one basis.
But there is not a one-to-one correspondence between sunspots and S-Regions.Disturbing Sun|Robert Shirley Richardson
The transformer below this has a one-to-one ratio, and is called the insulating transformer.Cyclopedia of Telephony and Telegraphy, Vol. 2|Kempster Miller
So by their one-to-one logic we should either hate back or go away.Planet of the Damned|Harry Harrison