It is important for each person to fulfill their role.

His nature is very kind.

Detailed information is needed to understand the nature of that project.

I was moved by his sincerity.

His nature is very kind.

He acted according to my instructions one by one.

I went to see a movie by myself.

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

I have been to France once.

He finished all his work all at once.