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

他们称最大的风险是让雪盖融化并导致大规模洪水和流。

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

这座城市被埋在 10 英尺深的愤怒的流中。

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1.25年前的白垩纪时，当时一股沸腾的流吞没了两只看似正处生死搏斗中的动物。

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

它位哥伦比亚的西南部，洪水将一股流冲进了莫科亚。

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

浆、 水和其他碎屑的混合物， 称为流， 会流下来并掩埋附近的城市。

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

被流吞噬并埋葬，威廉面前的困难简直是一座。

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12500万年前的白垩纪时，当时沸腾的流吞没了两只似乎陷入殊死搏斗的动物。

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流，而不是岩浆。这些快速移动的流可以摧毁沿途的一切。