one to one = 1:1

Alice had already begun to colour up and was beginning to speak, when her Ladyship perceiving her displeasure, continued thus.

Helm writes: 'As if she were some street criminal, ready to scarper, Ruth's home was swooped upon by [Assistant Commissioner John] Yates's men and she was forced to dress in the presence of a female police officer.

Pouring at the Masters of Food & Wine at Pebble Beach as a guest sommelier this April, I had the hard task — with small group of other similarly sport-jacketed wine geeks from around the world — to open, taste, decant and pour six bottles each of eight vintages of Château Margaux.