He is a world-famous physicist.

He understands the importance of learning.

He is majoring in psychology.

Gaku is my best friend.

He has a deep interest in archaeology.

Global warming is a big issue that affects all of us.

He believes in the geocentric theory.

A terrestrial planet may have an environment similar to Earth.

He likes to take a walk in the park at dusk.

I am majoring in biophysics at university.