英语作文，谈谈你最想发明的一样东西以及这项发明能给人带来什么便利。求解答

I want to invent a robot can help find lost things. Worry so we don't always said, "where is my bag" "where is my key," "what's happened to my pen" when people have lost my things, the robot will always find it in time, our life will be less trouble