Mr. Miwa is my best friend.

Sanzenaki is my best friend.

Their vocal trio captivated the audience.

I think this fossil is from a trilobite.

He is studying the concept of the 'three talents' in ancient China.

Mr. Mitoma is my best friend.

If the balance of the triple burner is disrupted, you may feel unwell.

He made a model of a triangular pyramid.

Isami is my best friend.

My younger brother is currently in his third year of high school, preparing for university entrance exams.