I'm a newcomer here. I would really appreciate it if you could clue me in on the library of the school.
我新来乍到,假如你能给我介绍一下学校的图书馆,我将不胜感激。
Since I missed the last meeting, I would like to have you clue me in on what happened.
我错过了上次的会议,请你给我介绍一下上次谈判的情况。
Please clue me in on what you are doing, so that I can help.
你在干什么,请告知,以便随时帮助你。