pro and con
贊成與反對;從正反兩方面
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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