I took a painkiller because I had a severe headache.

He ended up being the subject of a candid camera.

He solved the problem on his own.

Polyoxymethylene is a plastic that excels in heat resistance and wear resistance.

This orrery accurately reproduces the movements of the planets in the solar system.

He lost his sense of smell due to damage to his olfactory nerve.

He was arrested for a minor offense.

I am majoring in computer science at university.

He is majoring in geomorphology at university.

Recently, my neuralgia has been so bad that I can't concentrate on my work.