E. coli is one of the bacteria that normally reside in the human intestine.

The mountain avens is one of the beautiful flowers in the mountains.

He is the editor in chief of this magazine.

The town and village councils play an important role in solving local problems.

The bird of paradise flower is known for its vibrant color and unique shape.

He exercises every day to strengthen his gastrocnemius muscle.

Superfluidity is a part of physics, referring to the phenomenon where certain liquids flow without friction.

America is one of the superpowers in the world.

The theory of harmonic oscillators is a fundamental concept in physics.

He made up his mind to take on the new project.