fill…in on
inform in full；give current information about向某人详尽告知；介绍最新情况
I missed the meeting．Fill me in on what happened．我没有去开会。请告诉我发生了什么事情。
Would someone please fill me in on this point？请哪一位给我详细讲讲这一点，好吗？
Please fill me in on what's been happening while I've been away．请把我不在时所发生的情况详细告诉我。
The assistant filled his boss in on the details of the conference．助理把会议的详细情况向老板作了汇报。
The President had his advisor fill him in on the latest development in the financial crisis．总统要他的顾问向他通报财政危机的最新发展。
If the new employee doesn't know about his duties，fill him in．如果新的雇员不知道自己的职责，就要告诉他。