Oil is an important element of the world economy.

Cheers rose from the spectator's seat.

This meteorite contains olivine.

My favorite book is Harry Potter.

This beautiful cordierite is a part of my gemstone collection.

He sat in the cockpit and flew the plane.

He was appointed as an associate justice of the Supreme Court.

We need to strengthen the security of our company.

This game is a decisive battle for us.

The Great Red Spot on Jupiter is said to be the largest storm in the solar system.