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

He was struggling to understand the concept of a hypercube.

America is one of the superpowers in the world.

In physics, ultrashort waves form a part of the electromagnetic spectrum.

He likes to take a walk in the park at dusk.

His talent is immediately noticeable.

He is an expert in pomology and has contributed to the improvement of many fruit varieties.

I saw the Prunus serrulata flowers blooming in the park.

She is conducting research on the world's oldest profession.

Old World monkeys primarily inhabit Africa and Asia.