My older brother works as a systems engineer.

Their relationship is codependent, they depend on each other.

He is suffering from gambling addiction.

He is suffering from game addiction.

He is an expert in systems engineering.

Our school has introduced a new PA system.

The filesystem of my computer has broken down.

The automotive navigation system in my car has downloaded the latest map data.

Geographic Information Systems are very useful tools for map making and spatial data analysis.

We camped in a densely wooded area.