This fish is completely farmed, and no capture is done in the natural environment.

He loves physics and studies it in the library almost every day.

I am majoring in physical chemistry at university.

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.

Natural language understanding is an important field of artificial intelligence.

The depressed cowry lives quietly at the bottom of the sea.