零起点美语-Nature’s Most Violent Wind

Nature’s Most Violent Wind

An average of 800 tornados occur every year in the USA.
They can generate wind speeds faster than 250 mph. At times, they devastate whole communities.
Some are over a mile in diameter and can travel distances of 100 miles or more.
自然界最强劲的风
美国每年平均有八百个龙卷风。
龙卷风的风速可以超过时速二百五十英里。有时候，龙卷风会毁灭整个社区。
有些龙卷风的直径超过一英里，而且吹袭的距离可以达到一百英里或甚至更远。