Quantum mechanics is a branch of physics that studies the behavior of microscopic particles.

He is studying thermodynamics in depth.

Quantum chromodynamics is a part of particle physics that describes strong interactions.

My specialty is fiber optics.

I will enter a university in Tokyo next year.

He is an expert in toxicology and conducts many studies.

He has a deep interest in astronomy.

I am majoring in linguistics at university.

He has a deep interest in literature.

He is majoring in applied mathematics at university.