He is majoring in petrology at university.

He is an expert in tidology, studying the fluctuations of the sea's tides.

The calculation of the antiderivative is a fundamental part of calculus.

I learned how to calculate definite integrals in math class.

This volcanic rock contains a lot of olivine.

I am planning to go to Gangwon in Korea next week.

I ended up cohabiting with him.

I pray at the cathedral every day.

My new sneakers are very comfortable.

He succeeded in developing a charcoal-powered vehicle.