Her nose was an order issued from the darkness, a dead-straightladder in the darkness;
她的鼻子，是黑暗发出的一道命令，是黑暗里笔直的梯子；
2
If the above situation exists when working on a straightladder, a safety harness must be worn and team leader and employee must agree on additional precautions (if any).
在直梯上作业出现上述情况时，必须系安全带，同时主管和员工必须考虑其它保护措施(如果有的话)。
3
You can do so by using the side of the ladder as a wall to guide you straight up, or by simply aiming perfectly perpendicular to the ladder as you walk up.