He is majoring in petrology at university.

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

This beautiful zoisite necklace is my favorite.

This fossil is made of carbon.

We conducted a meta-analysis on this issue.

The prepositional case plays an important role in English grammar.

Let's participate in the election by using early voting.

Let's participate in the election by using early voting.

An abnormality was observed in his anterior chamber.

Learning how to use enclitics helps deepen your understanding of Japanese.