Hydrogen peroxide is often used for disinfecting wounds.

The use of this machine is simple.

Oxidation is a type of chemical reaction where a substance reacts with oxygen to form an oxide.

This computer can be used by anyone.

This park is very wide.

Naohiro is my best friend.

Looking at this vast sea, I feel free.

Hiroshi is my best friend.

This room is known for its spaciousness.

This compound turns red when it oxidizes.