Силовые структуры
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当时的美国总统尼克松 (Richard Nixon) 刚从越南战争的泥潭里拔出腿来，实在不愿意再往中东派大兵了。
But there are lots of steps that people can take to stay safe while out climbing, says Brendan Hughes, safety lead at Mountaineering Scotland. He says there's lots of information out there about what to pack and stresses that good-quality waterproof clothing doesn't have to be expensive.