He is an expert in planetary science.

This is my fourth attempt.

He is good at playing Beethoven's Ninth.

I like listening to Beethoven's Ninth.

This is my second attempt.

The Tertiary period was a very important time in the history of the Earth.

He passed the medical school entrance exam on his first try.

He passed the difficult exam.

A terrestrial planet may have an environment similar to Earth.

A Jovian planet is similar to Jupiter in terms of its size and composition.