英语词汇“two-tier system”的读音、翻译、释义、用法及例句-开邑网

词汇	two-tier system
释义	two-tier systemtwo-tier system1.■双元制度，双重制度
随便看	association constant association control service element association copy association cortex association diagram association disturbance association dues association factor association fiber back contact back contact proving back contact spring back-contact transistor back contract back coordination back cord back corners back corona backcountry back country backcountry district backcoupled generator back-coupled generator back-coupled Hall generator backcoupling

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