柯林斯词典commutative /kəˈmjuːtətɪv, ˈkɒmjʊˌteɪtɪv/ 1. ADJ relating to or involving substitution 交换的; 代替的 返回 commutative剑桥词典(of a calculation ) giving the same result whatever order the values are in 可交换的(计算) 返回 commutative