Look more closely, though, and some of these distinctions become blurred.

然而，凑近了看，某些差异却变得模糊不清。

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There are only a few sharp lines to give the image focus, and the blurred background is crucial to the look of the wallpaper as a whole.

一些明锐的线条用来形成图像的焦点，而模糊的背景对于壁纸的整体效果至关重要。

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Now, you can go ahead and shoot at F4 with shutter speeds up to the Max the camera has available. And you still achieve that precious look that we all want; a portrait with a blurred background.

现在你可以在F4光圈下用任何快门速度甚至相机最快的快门速度拍摄，取得你想要的拍摄效果：背景模糊的人物像。

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If you look at cabinetry over the years, the line has blurred between custom and standard.

FORBES: Cutting-Edge Kitchen Gear

This matters more and more: a binge of cross-border takeovers has blurred the national identities of fund-management firms, and investors these days look all over the world when choosing money managers.

ECONOMIST: Fund management

Jason Scott Lee and Anne Parillaud look dull and soporific in the leading roles, and even Patrick Bergin cannot do much with the blurred part of Russell.

NEWYORKER: Map of the Human Heart