For example, a film-maker might opt to include the background sound of an ambulance's siren while the foreground sound and image portrays an arguing couple.

例如，电影制作人可能会选择在背景中加入救护车的警笛声，而在前景的声音和图像中表现一对争吵的夫妇。

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The 3d effect makes it much easier to distinguish foreground action from background scenery, and should make platform games easier.

这种3d效果使得更容易分辨前景动作和背景景色，也应该使平台游戏更容易操作。

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Foreground and background color selection, to improve readability.

前景和背景颜色选择，改善可读性。

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Background is brought to foreground in a wealth of reminiscences, interviews with surviving members, film clips from the distant past and superb concert footage from the recent past, when the reunited Funk Brothers played at Detroit's Royal Oak Music Theater behind such singers as Joan Osborne, Ben Harper, Bootsy Collins, Chaka Khan and Meshell Ndegeocello.

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As soon as you back off, say by switching off the background music and allowing your foreground process to have all the processing power (and thereby complete its task more quickly), the benefits of having a dual-core machine will become far less tangible.

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With the flash on, the camera automatically merges an image of the subject illuminated with the flash in the foreground with a separate image of the background nightscape, to produce a single, clear night photo.

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