If, however, we want to construct the full original data, we need to know where to stop adding bits. Making an inversion list, then, is nothing more than counting bits.

• 不过,如果我们想要通过倒排表构造出原始的数据,我们必须要知道在哪里停止增加新的比特,这时就需要存储最后一比特的位置。