He is an expert in international law.

I am majoring in cytology at university.

My father is an expert in viticulture.

Cybernetics is a discipline that integrates information theory and control theory.

The problem of finding the least common multiple is one of the basic problems in mathematics.

They learned about the least common multiple in math class.

Cone cells are the main visual receptors for recognizing colors.

We will make the maximum effort for the success of this project.

He was sprayed with tear gas during the demonstration.

The use of renewable energy helps protect the global environment.