He is working on his job with intense concentration.

He is an expert in electronic phototypesetting.

He is creating a newspaper using an electronic phototypesetter.

His new project meets all three important requirements: funding, personnel, and ideas.

He is training his triceps brachii muscle every day.

He is said to have an interest in Communism.

He goes to the gym every day to train his triceps surae muscle.

She used a pupil dilator to dilate the patient's pupils.

Primitive communism is one of the initial forms of human social organization.

I live in San Diego.