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

He spends a lot of time for peacekeeping.

We all wish for world peace.

My dream is to travel the world.

We always pay attention to the maintenance of this machine.

The whole world is paying attention to the decisions of the Security Council.

He worked hard to accomplish his goals.

We need moderate exercise to maintain our health.

His role is the team leader.

Health is very important.