A:Mike, what do you know about writing a business plan?
B:Plenty. What type of plan are you writing?
A:Well, I have this great new idea that I think it will make a motza.
B:Want to let me in on the secret?
如何理解在一个句中出现的两个介词(in on)的用法?
let sb in on the secret 的意思是“让某人知道这个秘密”。例如:
Frank let me in on the secret.弗兰克告诉了我这个秘密。(摘自《朗文当代高级英语辞典》第六版p.2311)