单词	series multi-level unit
释义	series multi-level unit 单元级联多电平
随便看	a next-door neighbour An extemporaneous policy decision an extemporaneous speech an extempore address an extempore skit an extempore speech an extendable ladder An extended adventurous voyage or trip an extended battle line an extended family an extended lunch hour an extended occupation of Iraq an extended vacation an Extensible Programming Language AEPL An extension for the vacuum cleaner an extension ladder an extension numBer an extension of module homomorphism An Extension of Preimage Entropy an extension of time limit An Extension of Wallis Formula an extension to a factory an extension to the hospital an extensive meadow An extensive or distant view