He suffered for a long time due to tabes dorsalis.

Analytical chemistry is a science for clarifying the components and structure of substances.

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.

It is important to distance yourself from antisocial forces.

We are implementing a social distancing strategy to prevent the spread of the new coronavirus.

My brother works as a labor and social security attorney.