a fire caused by heaven, as by lightning ; a fire whose cause can not be ascertaind
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坐了3天火车，总算到家了。
After travelling by train for three days, we finally got home.
《新英汉大辞典》
今天火车没有别的班次了吗？
Is there no more train today?
youdao
但用户不能看Hulu的视频并不能说成是天火的错。
But it's not Skyfire's fault that you can't view Hulu videos.
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