中文解释英语：我已经对这个世界彻底失去生存的意义,此人已死.

I have completely lost meaningfulness for living in this world. This person is gone.

I have completely lost to the world the meaning of life, this person is dead.
我小学

I have to live in this world, the significance of losing has died

As for me, there is no point in living in this world. This person has died.
你给的汉语就讲不通。我翻译的基本意思是：对于我来说生活在这个世界上已没有意义。此人已死。