I think these teaching materials will be very useful for the students.

Humans and nature should coexist.

I decided to build a house with timber.

He traveled east and west.

May his health last for an extremely long period of time.

This machine operates using a special oil solution.

In this recipe, we use a special mixture.

It is important to brush your teeth every day using a dentifrice.

My father built a house using building materials.

Grandpa is still in good health.