Chromium has the property of changing color depending on its oxidation state.

His black cat is very cute.

Chromium is an important element in the production of steel.

I want to go to Croatia.

NASA is an acronym, which means 'National Aeronautics and Space Administration'.

I love Kakuro and play it every day.

He is working on wood and metal using a lathe.

The microchip is an important part of the computer.

Her black hair is very beautiful.

He toiled a lot to complete that project.