He exercises every day to strengthen his gastrocnemius muscle.

Superfluidity is a part of physics, referring to the phenomenon where certain liquids flow without friction.

America is one of the superpowers in the world.

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.

She started a special exercise to strengthen her adductor pollicis.