外框和内容区的内边距在20至25像素正逐渐成为一种约定俗成的法则，甚至更大的内边距也被普遍接受。

Padding of 20 to 25 pixels in the wrapper and content area is becoming a rule of thumb, and even more padding is often considered acceptable.

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您不能简单地在 n 像素外添加组件；实际上，您必需为早先的组件添加 padding（补白）。

You can't just add the component n pixels over; you actually must add the padding to the edge of the earlier component.

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的确如此。所以，除了升级像素外，Apple还采用了新型的，对光线更为敏感的机背照度传感器。

So Apple's using a newer backside-illuminated sensor that's more sensitive to light in addition to upping those megapixels — and we must say, pictures on the iPhone 4 look stunning.

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