He said he had a headache from a hangover.

I drank too much at yesterday's party, so I'm hungover today.

This is a very good book.

The moon on the sixteenth night is beautiful, isn't it?

He stays well because he leads a healthy lifestyle.

The sound of the night rain hits the window glass.

He is an ambitious student, always wanting to learn new things.

He started a life of abstinence for his health.

He decided to be abstinent for his health.

He was able to grasp the gist of the story quickly.