otiose [ˈoʊʃioʊs]

例句:

• an otiose round of meetings
  一轮无用的会议
  
• Objective To study the antitumor activity of otiose and coumarin in novobiocin.
  目的研究新生霉素的结构单元诺维糖和香豆素的抗肿瘤活性.
  
• But you compare others to catch a few final otiose more, it is toxic still.
  可是你比别人多抓几只最终没有用的, 它还是中毒了.
  
• Both explanations can be seen to be erroneous and indeed otiose.
  来自C. Rycroft