He understands the importance of learning.

He is majoring in psychology.

Gaku is my best friend.

He has a deep interest in archaeology.

I am majoring in linguistics at university.

He is interested in the study of constructed languages.

She damaged her speech center due to a stroke and lost the ability to speak.

Metalinguistics is an important concept in linguistics.

Natural language processing is the technology that allows computers to understand and generate human language.

His behavior is outrageous.