数字拷贝更容易操作。
耶鲁大学公有领域作品的数字拷贝并不仅仅向公有领域内发布。
Digital copies of Yale's public-domain works are not released purely into the public domain.
不像复印的书,数字拷贝与原件的质量几乎是一样的。
Unlike photocopies of books, the digital copies are virtually identical in quality to the original.
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