The Great Barrier Reef is the world's largest coral reef system.

My dream is to travel the world.

Coral reefs are very important for marine ecosystems.

In this chemical reaction, we need to overcome the barrier.

What is the maximum capacity of this machine?

This system is very efficient.

Your performance was really great.

His work shows true greatness.

This building is designed to be barrier-free, making it easy to use even with a wheelchair.

My Great Pyrenees is very smart.