There is no vocative case in Japanese.

The Onko is a bird with vibrant colors, and its call is said to be beautiful.

After he let out a long yell, he took a deep breath.

My father is being seen by a specialist in respiratory medicine.

He is suffering from lung cancer.

How is an adverb used in a sentence?

I learned double-entry bookkeeping at university.

A complex number is a combination of a real number and an imaginary number.

We are aiming for a society where all people can enjoy welfare.

She always wears the latest garments and clothing.