As time passed, his heart began to calm down.

This plan is proceeding perfectly without any excess or deficiency.

He was taken to the hospital due to an overdose of medicine.

He likes to take a walk in the park at dusk.

Tadatoki is my best friend.

He is good at handling a light machine gun.

Peroxides play an important role in chemical reactions.

You can clearly see the eyestripe on this bird.

Hydrogen peroxide is often used for disinfecting wounds.

He died from overwork.