I am interested in dermatology.

I love the music of Tenjikuraku.

He bought a new schoolbag.

He is an expert in theoretical physics.

He is an expert in electrodynamics.

He is an expert in dynamics.

He is an expert in dynamics, helping to solve complex problems in physics.

He is passionate about his research in futurology.

He is interested in the study of futurology.

He drew a decagon shape.