He is supporting that theory.

I can't see an end to the argument with him.

He ate one apple.

He is an expert in computational linguistics and is involved in the development of artificial intelligence.

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

This high-functionality smartphone has many convenient features.

His high-functioning smartphone greatly helps his daily life.

He has problems with executive functioning.

It is important for each person to fulfill their role.

We are focusing on the research and development of new products.