(noun.) the area taken up by some object; 'the computer had a desktop footprint of 10 by 16 inches'.
(noun.) a mark of a foot or shoe on a surface; 'the police made casts of the footprints in the soft earth outside the window'.
(noun.) a trace suggesting that something was once present or felt or otherwise important; 'the footprints of an earlier civilization'.
录入:赛斯
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