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building block是什么意思

building block

美['bɪldɪŋblɑːk]  英['bɪldɪŋblɒk]
  近义词:thing,unit,

英英释义

Noun
  1. a single undivided natural thing occurring in the composition of something else;

    "units of nucleic acids"

  2. a block of material used in construction work
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