pro /ˈpro/
  贊成者,贊成票,贊成意見
  Pro, prep.  A Latin preposition signifying for, before, forth.
  Pro confesso 
  Pro rata. 
  Pro re nata 
  Pro, adv. For, on, or in behalf of, the affirmative side; -- in contrast with con.
  Pro and con, for and against, on the affirmative and on the negative side; as, they debated the question pro and con; -- formerly used also as a verb.
  Pros and cons, the arguments or reasons on either side.
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  pro
       adj : in favor of (an action or proposal etc.); "a pro vote" [ant:
              anti]
       n 1: an athlete who plays for pay [syn: professional] [ant: amateur]
       2: an argument in favor of a proposal [ant: con]
       adv : on the affirmative side [ant: con]