trifecta  
noun [ C ] US uk/traɪˈfek.tə/ us/traɪˈfek.tə/
  (BETTING)      
  (赛马赌博的)三连胜式(押赌注者选定前三名并排定顺序,结果符合者为赢家)
a bet (= an amount of money that you risk on the result of an event or a competition, such as a horse race) in which the horses, etc. that come first, second, and third must be picked in the right order 
 Compare: exacta
   (ACHIEVEMENT)      
 三连胜;重要事情连续三次
a situation in which you achieve three things
  In this webcast, the presenters will share the trifecta for effective training: great content, simple technology, and dedicated leadership. 在本次网络直播中,主讲人将分享有效训练的三部曲:高质量的内容、简单的方法和专注的领导力。