Gaku is my best friend.

He has a deep interest in archaeology.

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

I am majoring in biophysics at university.

I am majoring in physical chemistry at university.

A diaeresis is used to change the pronunciation of vowels.

He is learning Taiwanese using Zhuyin fuhao.

Using this acute accent changes the pronunciation.

He is majoring in linguistics.

He has a deep interest in astronomy.