The document is a powerful reminder of the manpower on which European mountaineering expeditions depended, and also of the importance of local knowledge and assistance.
这份文件有效地佐证了当年欧洲登山探险队依赖的人力资源，也提醒我们了解当地知识和援助途径的重要性。
2
Next, they enlist the assistance of the local computer geek on staff.
接下来，他们会在当地职员中征集计算机极客的协助。
3
In this Kenyan slum, his photographs were printed on waterproof vinyl and doubled up as makeshift roofs. Projects such as these often require the assistance of local volunteers.