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。

She asked that she be kept informed of developments.

她要求继续向她报告事态发展情况。

Television has many advantages. It keeps us informed of the latest news and also provides entertainment in the house.

电视有很多优点。它让我们了解最新的新闻，让我们足不出户享受娱乐生活。

I am used to reading China Daily every morning, as it can keep me informed of the present events both at home and abroad.

我习惯每天早晨看《中国日报》，因为它能让我了解国内外的时事。