He was considered the wisest among the ignorant, like a bat in the land of the blind.

The Papua fire-eating bird, with its unique appearance, is a bird you won't forget once you see it.

We are aiming to kill two birds with one stone with this plan.

His father fell into a persistent vegetative state due to a traffic accident.

Basic oxides react with acids to produce salt and water.

It is important for us to respect cultural diversity and understand each other's differences.

This area is affected by radioactive fallout from past nuclear tests.

She was diagnosed with polycystic ovary syndrome.

This area is seriously contaminated with radioactive isotopes.

My father was diagnosed with ankylosing spondylitis.