They say the biggest risk comes from the volcano's snow cap melting and trigering massive floods and mudflows.

他们称火山最大风险是让雪盖融化并导致大规模洪水和泥流。

The city was buried in an angry torrent of mud 10 feet deep.

这座城市被埋在 10 英尺深愤怒泥流中。

The fossil, dated to about 125 million years ago, during the Cretaceous period, was formed And when a flow of boiling volcanic mud engulfed two animals seemingly locked in mortal combat.

这具化石形成于约1.25亿年垩纪时，当时一火山泥流吞没了两只看似正处于生死搏斗中动物。

It's located in the southwestern part of Colombia and the flooding washed a stream of mud into Mocoa.

它位于哥伦比亚西南部，洪水将一泥流冲进了莫科亚。

A mixture of mud, water, and other debris, called a lahar, can flow down and bury nearby cities.

泥浆、 水和其他碎屑混合物， 称为火山泥流， 会流下来并掩埋附近城市。

Consumed and entombed by the volcanic flood, William has one hell of a mountain to climb.

被火山泥流吞噬并埋葬，威廉面困难简直是一座山。

The fossil—dated to about 125m years ago, during the Cretaceous period—was formed when a flow of boiling volcanic mud engulfed two animals seemingly locked in mortal combat.

这块化石可追溯到大约12500万年垩纪时，当时火山泥流吞没了两只似乎陷入殊死搏斗动物。

They have been known to spew out suffocating gas and lahars, not lava, rather fast-moving volcanic mudflow, which can destroy everything in its path.

它们曾喷发出窒息性气体和火山泥流，而不是岩浆。这些快速移动火山泥流可以摧毁沿途一切。