operative[5CpErEtiv, 5CpEreitiv]adj.工作着的; 操作的; 运转的起作用的; 生效的【医】手术的实施的rules that are operative now目前有效的规则operative section of a factory工厂的生产部门become operative实施, 起作用External causes become operative through internal causes.外因通过内因而起作用。operative[5CpErEtiv, 5CpEreitiv]n.[5CpErEtiv]技工; 工人[美]私人侦探, 特务operativelyadv.