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

The United Kingdom of Great Britain and Northern Ireland is a country located in Europe.

Workers of all countries, unite, let's show our power.

I used an optical microscope for an experiment at school.

We will go to the flea market on Sunday.

We went to the free market on Sunday.

He laughed watching the children frolicking in the park.

He slipped out of the meeting quietly.

The teacher imparted knowledge to the students.

Kan curled his hair with his fingers.