上面这个句子非常Chinglish(中国式英语)!你是想表达“一个人的学习能力是无限的”吗?如果是,修改原句,我会翻译为“a person's study ability is unlimited." 或者用there be句型“There is no limit to a person's s...There is no limit to what a person can learn in a lifetime.这个there be 呢，用what引导的宾语从句你觉得怎么样。也可以：）！