mis·ad·ven·ture /ˌmɪsədˈvɛnʧɚ/
  運氣不佳的遭遇
  Mis·ad·ven·ture n.  Mischance; misfortune; ill luck; unlucky accident; ill adventure.
  Homicide by misadventure Law, homicide which occurs when a man, doing a lawful act, without any intention of injury, unfortunately kills another; -- called also excusable homicide. See Homicide.
  Syn: -- Mischance; mishap; misfortune; disaster; calamity.
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  misadventure
       n : an instance of misfortune [syn: mishap, mischance]