on the contrary
  相反,恰恰相反
  Con·tra·ry, n.; pl. Contraries
  1. A thing that is of contrary or opposite qualities.
  No contraries hold more antipathy
  Than I and such a knave.   --Shak.
  2. An opponent; an enemy. [Obs.]
  3. the opposite; a proposition, fact, or condition incompatible with another; as, slender proofs which rather show the contrary. See Converse, n., 1.
  4. Logic See Contraries.
  On the contrary, in opposition; on the other hand. --Swift.
  To the contrary, to an opposite purpose or intent; on the other side. “They did it, not for want of instruction to the contrary.” --Bp. Stillingfleet.
  on the contrary
       adv : contrary to expectations; "he didn't stay home; on the
             contrary, he went out with his friends" [syn: contrarily,
              to the contrary, contrariwise]