His work has a unique worldview.

An international auxiliary language is a language used for communication beyond countries and cultures.

A special event was held to celebrate his 100th birthday anniversary.

The chemistry class is very difficult.

A regular polyhedron is a polyhedron where all faces are the same shape and all vertices are the same shape.

The first day of the month is the beginning of a new month.

I have been to France once.

His first choice of school is the University of Tokyo.

I went to see a movie by myself.

He has a competitive spirit that does not allow even one defeat.