There are times when we perform calculations with the haversine in trigonometry.

He is the type of person who forgets the heat once it passes the throat.

Let's cherish every encounter with the spirit of 'once in a lifetime'.

Life is a series of ups and downs.

He does his work perfectly, dotting the i's and crossing the t's.

I conducted an interview in a question-and-answer format.

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

Sennenji is my best friend.

This fountain pen is my favorite.

Sannen is my best friend, and he is a very interesting person.