I had the leftover food at the restaurant put in a doggy bag.

He is studying the history of National Socialism.

He deeply believes in the principles of state socialism.

He was opposed to the principles of National Socialism.

Ethnic socialism is known as a synonym for Nazism.

Zhenzong was a great emperor of China.

He was perfectly mimicking the movements of the mimic.

His technique is really wonderful.

Please teach me how to calculate the area of this circular sector.