His hippocampus is maintaining a healthy condition.

This sentence is written in bold typeface.

This pathogen is very dangerous to humans.

He is a master of martial arts.

What is this powder?

The ophthalmologist said there was something wrong with my vitreous body.

The doctor said that his vision loss was due to a problem with the vitreous body.

He is deeply researching the theory of real number fields.

There is a possibility that unknown lifeforms exist on this planet.

He saw the light through the transparent object.