His idea is pure armchair theory and cannot be applied to real-world problems.

She is a married woman and has two children.

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

A new public work is being planned for the development of this area.

His description was detailed and easy to understand.

He is undergoing rigorous training every day to master ancient weapon techniques.

He spends a lot of time on public works.

Life in the Stone Age was greatly different from today.

We should always remember the power of Kannon in difficult times.

Ruins from the Bronze Age were discovered in this area.