Butyrate plays an important role in organic chemistry.

He always keeps in mind the phrase 'If one learns without thinking, it is a waste.'

He is a master of kunai technique, and no one can imitate his skills.

He was diagnosed with asplenia.

This country has fallen into anarchy.

He accidentally held her hand.

He attacked the enemy's position using a recoilless rifle.

He deeply sympathizes with the principles of anarchism.

They chose unconditional surrender.

Invertebrates are a type of creature without a skeleton.