How do I Say and Write
"Professional" in Chinese?

Pronunciation : Pro*fes"sion*al
Part of Speech : a.
Definition : 1. Of or pertaining to a profession, or calling; conforming to the rules or standards of a profession; following a profession; as, professional knowledge; professional conduct. "Pride, not personal, but professional." Macaulay. "A professional sneerer." De Quincey.

2. Engaged in by professionals; as, a professional race; -- opposed to amateur.
Source : Webster's Unabridged Dictionary, 1913

Pronunciation : Pro*fes"sion*al
Part of Speech : n.
Definition : Defn: A person who prosecutes anything professionally, or for a livelihood, and not in the character of an amateur; a professional worker.
Source : Webster's Unabridged Dictionary, 1913