vanguard [ˈvængɑ:rd]

例句:

• Take Vanguard, which has been aggressively cutting fees.
  来自WSJ
• The company is proud to be in the vanguard of scientific progress.
  这家公司以处于科学发展的领先地位而自豪。
  
• They are in the vanguard of technological advance.
  他们是技术发展的先导.
  
• In a way they played a vanguard role.
  在某种意义上说,他们起了先锋的作用.
  
• "Gus" Sauter is a senior consultant to Vanguard.
  来自WSJ
• Wright, Jackson they were leaders of the old vanguard.
  来自NEWYORKER