These flame-throwing tornadoes, called firewhirls, can be 50 feet (15 meters) wide and grow as tall as a 40-story building.
这种旋风烈焰,被称作火飓,可横跨15米,并升至四十层楼那么高。
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Fire tornadoes, also known as "firewhirls", only occur under certain conditions and form a vertical column of flames and hot air that behaves much like a normal tornado.