The inner core of the Earth is extremely hot and is mainly composed of iron and nickel.

It's high temperature today, it's hard to go out.

This coin is made of nickel.

I was amazed at his extraordinary talent.

Please press this button in case of emergency.

It is a very beautiful view.

This iron has been used since ancient times.

In physics, the study of the 'nucleus' at the center of an atom is important.

Is it possible to change the configuration of this computer?

It took him a year to compose that song.