Silver salt plays an important role in photography.

This curtain is made of fire-retardant material.

My daughter goes to the nursery school every day by the commuting bus.

I send my son to the nursery school every day.

I find my new fountain pen easy to write with, and I really like it.

I will be in charge of part of this project.

He is a first-class chef.

He was focused on his work all day long.

He is an expert in emergency medical care.

In November, we always go on a trip with our family.