可听书籍是拥有电脑合成的声音(你可以选择男声或女声)的书籍，虽然不同于自然人声，但一些用户觉得有声音总比没有好。
Audio, that is, read by a synthesized computer voice (male or female, your choice.) While not nearly as natural sounding as, say, Audible books, some users might figure this is better than nothing.
许多手机允许用户上网，但只有一些较新的手机能够无线连接到本地计算机网络。
Many cell phones allow users to surf the Web, but only some newer ones are capable of wireless connection to the local area computer network.
并不是非常必要，但给用户一些反馈也不错。
I don't strictly need to do that, but it's nice to give the user some feedback.
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