This post discusses a common approach to solving this problem, and also
Екатерина Графская (Редактор отдела «Наука и техника»)
。关于这个话题，WPS下载最新地址提供了深入分析
Minimal communication¶
She and her two friends had arrived at the base of the climb hours behind schedule and with low water supplies, and spoke about whether to turn back - but decided to go ahead with the route anyway.