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。
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