If you are up to speed with a subject or activity, you have all the latest information about it and are able to do it well.

We arranged for some home tutoring to get him up to speed with the other children in his class. 我们安排了一些家庭辅导，以帮助他跟上班里其他孩子的进度。

Before we start the meeting I'm going to bring you up to speed with the latest developments. 在会议开始之前，我想先向大家介绍一下最新的进展。