He is my best friend.

His goal was truly a miracle play.

Please don't forget to hydrate to prevent heat stroke.

The cerebral cortex is an important part that controls thinking and emotions.

The effect of this medicine is to alleviate the symptoms of a cold.

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 is facing the problem of erectile dysfunction.