He is well versed in mathematics.

My father is suffering from gout.

He is an excellent interpreter.

Commuting to school by train every day is tough.

I commute to school by train every day.

I have been communicating with him for a long time.

He has expertise in computer science.

He is well acquainted with Japanese.

Carbon monoxide is a colorless, odorless gas, and it is dangerous to inhale.

Lawrencium is one of the heaviest elements in the periodic table.