“无比地”的英语？

回顾此事，我会无比地开心。I will look back at this one with undiluted pleasure.蜗牛爬得无比地慢.A snail moves infinitely slowly.如果这种情况发生在纳威人身上,我将感到无比地欣喜.If anything happened like this with Na'vi I'd be delighted....