打结的

• It is easy , unfortunately , to understand why none of these pre - cautions were taken ? the rappel was short , the terrain familiar , and knotting the ends of a rope that should have reached the ground with 30 feet to spare likely seemed pointless
  不幸地，我们很容易可以理解为什麽前述的保护措施都没有在这次意外中被使用因为这个只有单次垂降、距离不长；这个地形是当事人相当熟悉的地点；绳子的长度明显足够，所以也就省略了绳尾打结的重要性。