When I am against with the world, I will not quit/give up the world because of you, but I will conquer it for you, and authorize you with the right to handle with it.
be against with 与……对立
quit 和give up都是放弃的意思
攻下这个世界,我给你翻译成征服世界了
交给你,任由你处置:我帮你翻译成我授权给你,任凭你如何处置。
不知是否合适哈……
If the world is against you, I won't give up the world for you; but I will conquer the world for you, and put it at your disposal.
When you and the rest of the world to immediately, I will not give up the world for you, but I will do for you, power of the world, to you, at your disposal