He often uses four-kanji idioms.

This old book is written in old-style characters.

The term '異體字' refers to Chinese characters that have the same meaning but different forms.

Tadaharu is my best friend.

Bovine spongiform encephalopathy is a fatal disease that infects cows.

Every morning, he has a habit of reciting the Diamond Sutra.

Rhinovirus is a common cause of colds.

Rhinovirus is one of the main causes of the common cold.

He sent a message to the ship using a signal flag.

Zebu, also known as 'kobushi', is a type of cow often seen in tropical regions.