keep you informed后面跟什么介词

后接介词of，keep  informed of为固定搭配，中文意思是，随时了解

We perfected a hand-signal system so that he could keep me informed of hazards.我们完善了一套手语体系，以便他能告知我危险。

We keep them informed of any changes as they arise.如有任何变化，我们随时通知他们。