A fire tornado consists of a core-the part that is actually on fire-and an invisible pocket of rotating air that feeds fresh oxygen to the core.
火龙卷风是由一个正在燃烧的核心和看不见的一片旋转气流组成的，旋转气流不断把新鲜空气注入核心。
A fire tornado swirls near a chimney on the roof of a burning house in an unidentified location (file photo).
在这张地点不明的资料照片中，火龙卷风在一栋着火房屋的烟囱旁旋转着。
A rare phenomenon known as a "fire tornado", has been caught on camera towering into the night sky above Budapest.
一种被称为“火旋风”的罕见现象最近出现在布达佩斯的夜空中，还被照相机拍了下来。
A rare phenomenon known as a "fire tornado", has been caught on camera towering into the night sky above Budapest.
一种被称为“火旋风”的罕见现象最近出现在布达佩斯的夜空中，还被照相机拍了下来。
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