Today, along the ridge, climbers have the advantage of about 60 aluminum ladders to cross a treacherous ice fall and thousands of yards of fixed ropes.

现在，沿着山脊，登山者拥有了一些有利条件，包括跨越一条危险的冰瀑所架设的60多架铝梯以及几千码的已经布好的绳索。

The ice on the roads made driving conditions treacherous.

路上的冰对驾车构成了隐患。

Treacherous wind and ice storms can strike without warning, leaving unprepared climbers frozen in their steps.

变化莫测的冰风暴会毫无预警来袭，让那些毫无准备的登山者当场冻僵。