unalterable [ʌnˈɔltərəbəl]

例句:

• the unalterable laws of the universe
  不可改变的宇宙法则
  
• The general trend of history is unalterable.
  历史发展的总趋势是不可改变的.
  
• At first blush , land is seen as a fixed or unalterable resource.
  乍一看土地是一种固定的,或者说是不可改变的资源.
  
• His commitment to Christianity was by now fixed and unalterable.
  来自P. Gardiner
• Instead you have a unalterable world view that denies anything that conflicts with it.
  来自SA
• The power of words over reality cannot be unlimited since, fortunately, reality imposes its own unalterable conditions.
  来自WSJ