By definition, there is no such thing as a "first edition" e-book or an MP3 CD with a limited printing, since digital items can be duplicated an infinite number of times.
根据定义是没有第一版电子书或者限量版的MP 3, CD这么一说的。因为数码产品是可以无限制复制的。
2
So handling the relation of each edition clearly, pointing out the quality of each edition that in plot and person image depicting, it is the foundation before we studying the drama DOU E YUAN.
理清各版本之间的关系，指出各版本之于剧情人物形象刻画的优劣，实为全面研究和评价《窦娥冤》的基础。
3
This piece is a starter edition which is subtitled by ERS E-Research (Lab) in November 2011 with the purpose to achieve a better understanding of the public.