词汇	hollow plastic frame
释义	hollow plastic frame 物空心塑料框
随便看	central exchange rates central excise central excises central excitation central excitation system central-excitation system central excitatory mechanism central excitatory mechanismCEM central excitatory state =central excitatory state 中枢兴奋状态 central executive Central Executive Committee central executive function central executive system central exhaust central exhaust system Central Experiment and Proving Establishment central exponents central extension central extension field central extension of groups central exudative chorioretinitis central exudative chorioretinopathy central exudaUve chorioretinopathy central face