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building block    我要挑错精准翻译

参考词典中building block的常规释义:

基本释义
  • n.(儿童游戏用的)积木
英英解释
  •  2个名词解释

    1. a single undivided natural thing occurring in the composition of something else
      [同] building block, unit
      [例]
      • units of nucleic acids
    2. a block of material used in construction work
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