oth·er·ness /ˈʌðɚ/
  相異,不同,差異性
  Oth·er·ness, n. The quality or state of being other or different; alterity; oppositeness.
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  otherness
       n : the quality of being not alike; being distinct or different
           from that otherwise experienced or known [syn: distinctness,
            separateness]