com·bi·na·to·ri·al /ˌkɑmbənəˈtoriəl, kəmˌbaɪnə, (ˌ)bɪ, ˈtɔr-/
  組合的
  combinatorial
       adj 1: relating to or involving combinations [syn: combinative, combinatory]
       2: relating to the combination and arrangement of elements in
          sets