核心句型：
What's the gag?
这里面有什么奥妙？
gag作名词讲有“塞口物”的意思，在俚语里意为“插科打诨或临场的笑语”。What's the gag? 这句话的正确意思是：“这里面有什么奥妙？”。因此，当美国人说"What's the gag?"时，他/她要表达的意思就是:"What's the secret?"、"What's the trick?"。
情景对白：
Colleague: Shirley, you are always passionate about your job. What's the gag?
同事：雪莉，你总是对工作充满热情，这里面有什么奥妙吗？
Shirley: Well, I always remind myself that everyday is a new start and I can make it.
雪莉：嗯，我总是提醒自己每天都是新开始，我能行。
搭配句积累：
①It becomes more convenient to control.
事情变得更容易掌控了。
②How can you complete the task in such a short time?
时间这么短，你是怎么完成任务的？
③I want to work as efficiently as you do.
我想和你一样高效工作。
④You are always getting along well with your sulbordinates.
你跟下属总是相处融洽。
单词：
passionate adj. 充满激情的
I'm a passionate believer in public art.
我是公共艺术的狂热信徒。
He is very passionate about the project.
他对那个项目非常热心。
His passionate speech had an effect on our emotions.
他的热情的演讲打动了我们的感情。