Saint Elmo's fire
柯林斯词典
1. N (not in technical usage) a luminous region that sometimes appears around church spires, the masts of ships, etc. It is a corona discharge in the air caused by atmospheric electricity 聖-艾耳莫火; 教堂頂、船桅等上麪區域放亮，爲大氣層生電而産生的光暈 (Also called corposant)
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