The sexology class is very interesting.

Sexology is the scientific study of human sexual behavior and sexuality.

He is an excellent student.

He is an expert in biochemistry.

I am majoring in embryology at university.

He is an excellent medical student.

The educational system in Japan consists of six years of elementary school, three years of junior high school, three years of high school, and four years of university.

Cell biology is the study of the structure and function of cells, which are the basic units of life.

Please translate this Japanese text into English.

My favorite restaurant has opened a new branch.