irreplaceable [ˌɪrɪˈplesəbəl]

例句:

• Was Crowe trying to make himself invaluable and irreplaceable?
  来自WSJ
• They are priceless, unique and irreplaceable.
  它们是独一无二、不可替代的无价之宝。
  
• There's one man who's considered irreplaceable.
  有一个人被认为独一无二。
  
• The Radio frequency communication irreplaceable makes mobile communication realized in underground mine.
  射频通信无可替代地实现了矿山井下的移动通信.
  
• She was fully convinced that no one was irreplaceable.
  来自B. T. Bradford
• Their skills are seen as irreplaceable by some critics.
  来自BBC