He learned about the concept of Gemeinschaft in his sociology class.

My younger sister won the spelling bee contest.

The spinal reflex is a part of our body that reacts automatically.

Every Sunday, this street becomes a pedestrian-only street.

He deeply believes in the principles of national socialism.

My brother works as a labor and social security attorney.

He was the first discoverer of that new species of plant.

He works at a striptease club.

I will enroll in a driving school next week.

A cooling device utilizing the principle of radiative cooling has been developed.