The United Nations Security Council plays a crucial role in maintaining world peace and security.

That unsolved problem keeps him awake at night.

That unsolved case keeps him awake at night.

The process of name resolution is very important in computer networks.

I am an Earthling.

We are searching for extraterrestrial life.

We need to devise a new plan.

The process of terraforming is part of transforming other planets into a habitable environment for humans.

Earth science is an important field of study for unraveling the mysteries of nature.

Yusaku is my best friend.