This world is ruled by the law of the jungle.

The Taiwan Strait is the strait that separates China and Taiwan.

My younger brother is good at aquatics.

My father was diagnosed with ankylosing spondylitis.

He became obsessed with publicly-owned gambling enterprises and used up all his savings.

We need to solve the problem in the production environment.

He is receiving treatment for obsessive-compulsive disorder.

She has zoophobia, and runs away as soon as she sees dogs or cats.

He has acrophobia, so he is not good at mountain climbing.

He is observing stars using his new telescope.