It seems like something important is lacking in his life.

Important information was omitted from his explanation.

This village has existed since ancient times.

Butyric acid is one of the components that characterizes the flavor of butter.

He failed the exam.

She shed tears out of emotion.

She shed tears out of deep emotion.

His optimistic view of life gives us the power to think positively even in difficult situations.

He was indulged in libertinage when he was young.

He lives like a libertine.