He experienced the harsh reality of the underbelly of society.

He is working at a school as a student teacher.

My younger brother is attending a middle education school.

By regularly checking the key performance indicators, you can understand the performance of the company and devise improvement measures.

I am very interested in sociolinguistics.

He is studying the history of National Socialism.

He deeply believed in the principles of state socialism.

He deeply believes in the principles of state socialism.

He was opposed to the principles of National Socialism.

Democratic socialism is a political theory that aims for a fair society.