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.

He wakes up early in the morning.

Choichiro went fishing.

Please stop deriding my dreams.

He found forensic evidence.

This museum exhibits a collection of rare ulexite.

The colossal squid is the largest squid living in the deep sea.

Saturated fatty acids may increase the risk of heart disease.