He conducts research in the laboratory every day.

In order to find the empirical formula of this compound, you must first calculate the ratio of elements.

He conducted a thought experiment to solve a problem in physics.

He has a deep interest in archaeology.

He understands the importance of learning.

He is majoring in psychology.

Gaku is my best friend.

Natural language understanding is an important field of artificial intelligence.

I am majoring in physical chemistry at university.

I am majoring in biophysics at university.