Today's lesson was very difficult.

I work in the sales department.

I felt a deep heartache due to his betrayal.

The fee for the food at this restaurant is high.

Is the service fee included in this restaurant?

Recently, my neuralgia has been so bad that I can't concentrate on my work.

I am studying hard to get a scholarship for university.

He betrayed my trust.

I believe him.

This forest is designated as a no-hunting zone.