The four computer types differ primarily in the number of and kind of central processor.

Resentment and spite also differ primarily in the way they are expressed.

This play differs from the following primarily in that the ball remains behind the line of scrimmage during the passes.

They differ primarily in the services that they provide to their residents.

A retirement home differs from a nursing home primarily in the level of medical care given.

These versions differed from the original titles primarily in their size but also in other ways.

The series differ primarily in the class of engine that each uses.

It primarily differs from an attack in that the aim is not to hold ground.

The two differ primarily in who organizes and operates them.

The methods differ primarily in the location the wrapping is begun.