英语词汇“a necessary evil”的读音、翻译、释义、用法及例句-开邑网

词汇	a necessary evil
释义	a necessary evila necessary evil1.■不可避免的恶事〔弊害〕Is war a necessary evil in this world?战争是这个世界上人们不愿见其发生但又无法避免的灾祸吗?
随便看	voltage coil voltage collapse voltage commutation voltage comparator voltage comparison converter voltage-comparison encoder voltage compensation voltage compensation method voltage compensator voltage conditioner voltage constant voltage contrast voltage control voltage-controlled voltage controlled amplifier voltage controlled attenuator voltage-controlled attenuator voltage controlled avalanche oscillator voltage controlled bus voltage-controlled current source voltage controlled oscillator voltage controlled phase shifter voltage-controlled phase shifter voltage-controlled resistance voltage controlled variable delay line

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