Compaeing with traditionary book resources, Book-attached CD-ROM has its own features.

随书光盘与传统图书相比，有自己的特点及存在的问题。

youdao

This is an incredibly feature rich ROM, with the majority of 2.1 features available and working.

这个ROM功能相当丰富，很多2.1主要的功能都能支持并正常工作。

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On the software front Xiaomi's decided to jump straight to Android Jelly Bean for the phone's MIUI ROM, which itself packs several new features as well.

ENGADGET: Xiaomi Phone 2 now official: 4.3-inch 720p IPS, quad core and Jelly Bean for just $310

These often include features the lightweights lack, especially CD-ROM, DVD or CD-RW drives.

WSJ: Laptops Bring Along Bewildering Options