He played the leading role in the movie.

He played an important role in that war.

This lake is very deep.

His eyes were filled with deep sorrow.

Sentarou fell asleep while watching TV.

That decision had a bad effect on our project.

His words had a great influence.

He recognizes the importance of oral history.

He interprets world events from a historicism perspective.

He is a famous historian and has written many history books.