我们为伯恩选择小的，灰色的，带有滚动边缘的混凝土铺路石。
For the Berners, we chose small grey concrete pavers with tumbled edges.
比如，倾斜设备可以把设备变成一个方向盘，或者让游戏中的桌面倾斜，让大理石球滚动起来。
"For example, tilting a device can turn it into a steering wheel or a tabletop on which a marble rolls," writes CNET's Stephen Shankland describing the upcoming capabilities.
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