He is known as an expert in river engineering.

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

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

He likes to take a walk in the park at dusk.

He is majoring in aerospace engineering.

He is a born adventurer.

My friend is a real dog lover, always talking about dogs.

My neighbor is a bird lover, always putting bird food in the garden.

My pet rabbit is very cute.

He is a successful businessman and is now known as a wealthy person.