Difluoromethane is widely used as a refrigerant.

Cyclopentane is a compound often used in organic chemistry.

Cyclooctane plays an important role in organic chemistry.

He used a metal detector to search for treasure on the beach.

Spending time with family on Christmas night is the best.

I want to eat a beef bowl.

The lens of this camera is easy to attach and remove.

He always plays minor parts in the theater company.

He was deeply grieving the death of his family.

His performance is generally good.