There is yet another aspect of the harsh environment that they have to adapt to, the force of tides and occasional violent storms.

但依然存在另一个恶劣的环境问题，需要它们适应，即汹涌的潮汐和偶尔袭来的飓风。

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Evidence of violent storms that destroyed a lost town known as Britain's Atlantis has been uncovered.

人们已经找到了证据证明一场暴风雨摧毁了“英国的亚特兰蒂斯”小镇。

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U.S. emergency officials say at least 200 people have been killed in violent storms and tornadoes that have swept through the southern U.S. states in recent days.

美国紧急事务官员说，在近日横扫美国南部各州的猛烈风暴和龙卷风中，至少有200人丧生。

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So what do we know about the conditions that cause these violent storms?

CNN: The making of a nightmare tornado

The impact of climate change will also be felt in inland cities because of larger, wetter and more violent storms.

FORBES: Asia's Megacities Pose A Stark Environmental Challenge

These violent storms almost always require that the wind speeds increase from 20 mph on the ground to more than 100 mph (horizontally) aloft.

CNN: The making of a nightmare tornado