He is living in a frontier area.

His deviation value is higher than the national average.

It's difficult to remember words with irregular conjugation.

I requested a refund because the product was defective.

The product was defective, so I asked the clerk to return the money.

His amygdala is working very actively.

This area is rich in schist.

He was in charge of the editorship of that science book.

This cake has a strong flavor of bitter almond.

This exam is taking an irregular format.