Radio astronomy plays a very important role in understanding the universe.

Infrared astronomy provides a new perspective on understanding the universe.

He is an expert in experimental psychology.

I am majoring in auditory phonetics at university.

He is interested in geometrical shapes.

He is an expert in folklore studies, and his research is highly regarded worldwide.

He explained the importance of studying while young, saying 'If you do not study when you are young, it will be difficult to learn when you are old.'