Smartphones and e-readers have become more common in recent years.

近年来，智能手机和电子阅读器变得越来越普遍。

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You could limit distractions by reading only physical books, or on single-purpose e-readers.

你可以通过只阅读实体书或单一用途的电子阅读器来减少分心。

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A study in the Information Science Research found that young people preferred e-readers, like smart phones or iPads.

《信息科学研究》（Information Science Research）的一项研究发现，年轻人更喜欢电子阅读器，比如智能手机或 iPad。

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So you can read on an iPad or a touch-screen tablet, but the e-book readers are less expensive.

VOA: special.2010.12.20

We didn't have e-book readers. Very,very few consumers had notebook computers.

VOA: special.2010.12.27

Compared to last week's report, this probably shows that consumers who actually buy e-readers don't really care about the touch feature, whereas those on the outer circle are mainly waiting for more -- and no doubt cheaper -- touchscreen e-readers.

ENGADGET: E-reader statisfaction study shows 93 percent of users are happy, just not you

The development of e-readers and e-books created more pressure on the large stores.

FORBES: Book Publishers Challenged by Distribution Problems

E-readers are great for reading e-books.

FORBES: SAPVoice: Never Mind the Featurephone, Here Comes the FeatureTablet.