Take the way consumers are swapping from printed books, magazines and newspapers to digital versions that can be downloaded to e-readers, tablets, laptops or even smart phones.
The commission's reports, combined into one volume, went on sale nationwide Thursday in printed and e-book versions.
委员会的报告，集合成册，已经在国家星期四印刷出售，又已经有了电子版。
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Some continue this fine tradition with HTML e-mails, painfully preparing two versions of each document: plain text for older e-mail clients and HTML for newer ones.
有些人在 HTML 电子邮件时代还继续保持这个好的传统，不遗余力地为每份文档准备两种版本：为旧式电子邮件客户机提供纯文本，以及为新式客户机提供 HTML 版本。