pivotal [ˈpɪvətl]

例句:

• Finding how this happens is pivotal to particle physics.
  来自SA
• This position is a pivotal role within Ion Torrent.
  来自SA
• He has established himself as a pivotal figure in US politics.
  他已经确立了自己在美国政界的核心地位。
  
• a pivotal role in European affairs
  在欧洲事务中的关键作用
  
• The Court of Appeal has a pivotal role in the English legal system.
  上诉法院在英格兰司法体系中起着中心作用。
  
• That is the pivotal innovation to make life multiplanetary.
  来自WSJ