He is honing his skills as a practitioner of erotic bondage.

She is my best companion.

Because he is a fast worker, he can always finish earlier than the deadline.

He is a very diligent person.

His diligence in his work was appreciated, and he was promoted.

He controlled the game using a trapping move.

He is active as the center fielder of the team.

He is the best right fielder on the team.

He is the best left fielder on the team.

He was finally able to obtain that rare comic.