The rock-wallaby is a small kangaroo native to Australia.

My hobby is to enjoy rock climbing with my friends on weekends.

Mr. Iwahori is my best friend.

The striped shore crab is a creature often seen in rocky areas.

He likes climbing rock faces.

There is a beautiful waterfall made of artificial rock in this park.

She suffers every month because of dysmenorrhea.

He is suffering from aphasia as a sequelae of stroke.

The government declared a state of emergency to prevent the spread of the new coronavirus.

This mountain is mainly composed of gneiss.