inoperative [ɪnˈɑ:pərətɪv]

例句:

• The law has become inoperative.
  该法律己无效.
  
• This rule is inoperative until further notice.
  此规则何时生效待通知.
  
• Of course , Harrison's analysis was inoperative.
  哈里森的分析显然是站不住脚的.
  
• The captain tried to transmit a "mayday" call but the radio was inoperative.
  来自WSJ