The theory of harmonic oscillators is a fundamental concept in physics.

My hometown is Fukuoka City, the prefectural capital of Fukuoka Prefecture.

I study Japanese every day using a workbook.

Choichiro went fishing.

Please stop deriding my dreams.

He said, 'Even if you die in the evening, it's okay if you ask the way in the morning,' teaching me the importance of living each day to the fullest.

What are the indications of that disease?

Sumi cleaned the room neatly.

I hope our love will be eternal.

He is cutting vegetables with a kitchen knife.