con·tra·dis·tinc·tion /ˌkɑntrədɪsˈtɪŋ(k)ʃən/
  對比
  Con·tra·dis·tinc·tion n. Distinction by contrast.
     That there are such things as sins of infirmity in contradistinction to those of presumption is not to be questioned.   --South.
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  contradistinction
       n : a distinction drawn on the basis of contrast; "sculpture in
           contradistinction to painting"