At last, the crew realized they were watching Saint Elmo's fire.

最后，船员们意识到他们正在观看圣埃尔莫的火。

To Ferdinand and his men, Saint Elmo's fire was a signal that the saint would protect them.

对斐迪南和他的手下来说， 圣埃尔莫的圣火是一个信号， 表明圣人会保护他们。