you have lost one of the most important things in the world?

you have lost one of the most important things in the world?
you have lost one of the most important things in the world?

you have lost one of the most important things in the world?
你已经失去了一件世界上最重要的东西

你已经失去了世上一个最重要的东西。

你已经失去了在世界上最重要的事情之一？