killer [ˈkɪlɚ]

例句:

• Police believe the killer punched her to death with his bare hands.
  警方认为她是被凶手活活用拳头打死的。
  来自柯林斯例句
• Rehnuma, meanwhile, is a bona-fide killer track.
  来自BBC
• The vital clue to the killer's identity was his nickname, Peanuts.
  查明杀手身份的重要线索是他的外号叫“花生”.
  
• Plucky and valiant, but lacking the killer instinct.
  来自THETIMES
• So if it's not there now, the killer has it. Right?
  如果它现在不在那里，就在凶手那里。是吧？
  
• Heart disease is the biggest killer in the country.
  来自WSJ