Block - printed books did not appear until the Song Dynasty.

及至宋代,方有刻本.

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Depending on the cost, size, and weight of book - sized notebook computers, printed books may become obsolete.

凭借书本大小的笔记本电脑在成本 、 大小及重量方面的优势, 打印的书籍将逐步被淘汰.

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What are the advantages of E - books and would they replace printed books altogether?

电子书 的优势是什么?它会完全取代印刷书籍 吗 ?

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