There is not a one-to-one relationship between population and power.

Therefore there is no one-to-one relationship between saving and lending.

If they did have a one-to-one relationship, reading would be easier.

This rather odd form of expression is used because it does not assume a one-to-one relationship.

The person holding the mouse has a one-to-one relationship with the machine.

The one-to-one relationship simply is absent in the case of a monopoly.

The teachers were telling us when there's a one-to-one relationship between the student and the laptop, the box gets in the way.

With the mobile phone, they established a personal one-to-one relationship ten years later.

Brands will have the potential to develop one-to-one relationships with their customers like never before.

It's extremely difficult to get anything more than a one-to-one relationship between, say, your hand and the $20 bill you're holding.