The most obvious change is a new, simpler user interface.

最明显的变化是一个新的，更简单的用户界面。

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It has been redesigned with a cleaner, simpler user interface that makes it easier to use.

它在经过重新设计后拥有更清爽、更简洁的用户界面，这使得它更加易用。

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There will be a simpler user interface that adapts to your needs, with voice recognition and natural-language processing.

用户界面将更加简单，能适应你的需要，并带有语音识别和自然语言处理功能。

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As is often the case with Apple, much of the iPod's appeal rests on its design and its user interface, which seems much simpler and more fluid than the competitors'.

FORBES: Apple Unwraps IPod