The primary action of the novel is set in the Nevada desert during a joint training exercise.

In these books, the primary action happens during armed combat.

The primary action took place on 8 May.

My own preying on any world is always the primary action on that world.

Dr. Brown was anxious because he was away from the "primary" action of the expedition.

The primary action takes place on the top screen with all meters, map, character messages and choices at the bottom.

This is the primary action of these medicines.

Single clicking is usually a primary action of the mouse.

Once chloracne has been identified, the primary action is to remove the patient and all other individuals from the source of contamination.

Ten television screens are set up around the grounds to show the primary action.