I lost my My Number card.

I checked the train schedule by looking at the electronic noticeboard at the station.

This Chaban Kyogen is a historical form of theater performed improvisationally.

In Christianity, the Last Supper is considered a very important event.

A new face in the hole board was installed in the park.

Understanding the concept of 'Ha-line conversion sounds' is important in learning Japanese.

A positive-definite matrix is an important concept in linear algebra.

A positive-semidefinite matrix is one of the important concepts in linear algebra.

This 'hanaichimonme' is very beautiful, isn't it?

He is the type of person who understands ten from hearing one.