中翻英：我可以沒有全世界，但我不能沒有妳。謝謝。

I can lose the whole world, but I cannot lose you.

I can live without anything in the world but you.
(I cannot live without you buy anything else in the world.)

agreed with nobodyfantasy

This is a very straight forward for English:

I can give up the entire world, but I cannot be without you.
I am able to be without the entire world, but I cannot be without you.