He is an expert in physical anthropology.

He is an expert in physical anthropology, conducting research on human evolution.

Gestalt psychology is an important means to understand human cognitive processes.

He has problems with executive functioning.

His high-functioning smartphone greatly helps his daily life.

This high-functionality smartphone has many convenient features.

The doctor recommended a blood test to check my liver function.

He ate one apple.

It is important for each person to fulfill their role.

My brother is a graduate student at the University of Tokyo.