keep someone in the picture idiom
C1 使（某人）了解情况
to make sure someone knows all the facts about a changing situation
I use the radio to keep me in the picture about what's happening abroad. 我一直靠听收音机来关注国外发生的事情。
英汉双解词典收录81607条英汉双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。