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placeholder ['pleishəuldə(r)]    我要挑错精准翻译

参考词典中placeholder的常规释义:

基本释义
  • 位置标志符
英英解释
  •  2个名词解释

    1. a person authorized to act for another
      [同] placeholder, procurator, proxy
    2. a symbol in a logical or mathematical expression that can be replaced by the name of any member of specified set
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