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1. Oxford Dictionary

   commutative

   • IPA[kəˈmjuːtətɪv]

   英式

   • adj.
     involving the condition that a group of quantities connected by operators gives the same result whatever the order of the quantities involved, e.g. a × b = b × a.；relating to or involving substitution or exchange.
2. • 更多解釋

   commutative

   • IPA[ˈkämyəˌtādiv]

   美式

   • adj.
     involving the condition that a group of quantities connected by operators gives the same result ...

   Oxford American Dictionary