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

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。