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1·Ignis fatuus is a luminosity that appears over swamps or marshes at night.

鬼火是一种夜间出现在沼泽里或沼泽上的发光体。

2·A luminosity that appears over swamps or marshes at night; ignis fatuus .

鬼火，磷火夜间在旷野或沼泽出现的闪光；鬼火。