This government-established textbook is for teaching students about the country's history and culture.

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 believes that 'money is everything in this world.'

He has a deep interest in archaeology.

I am majoring in biophysics at university.