He is majoring in criminology at university.

He is known as an expert in criminal investigation.

When the fact became clear, he was surprised.

His secret was found out.

An antiparticle is a particle that has the opposite properties of matter.

This woodblock print is by a master craftsman from the Edo period.

My work has been very busy recently, and I hardly have time to rest.

He is always busy with work during the busy season.

The repulsive force of this magnet is very strong.

His popularity plummeted due to the backlash of that policy.