They generally consist of a hole in the ground with a footprint on either side.

它们由地上的一个洞、两边的一对脚印组成。

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Installation of a patch or hotfix always leaves a footprint in the registry.

补丁程序或者修订程序的安装总是在注册表中留下痕迹。

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Though a footprint can be positive or negative, the emphasis in these considerations is such that a person is seen primarily as a threat or load to the earth.

虽然这种足迹可好可坏，这些考虑重点在于人类从根本上给地球带来多少威胁和负担。

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A carbon footprint is the amount of carbon dioxide pollution that we produce as a result of our activities.

VOA: special.2011.04.05

The list is quite long." So Professor Galloway and other researchers have developed a nitrogen footprint calculator.

VOA: special.2011.04.05

The building's footprint is shaped like a "Y", with three wings extending from its center.

VOA: special.2010.03.31

Plus, at 4.12 pounds, it's reasonably light for a machine with this large a footprint.

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When you visit a website, you leave a footprint behind in the form of IP information.

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This gave us a footprint far bigger than we could ever have hoped to achieve on our own.

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