extreme end

例句：

1. 1. The temperature reached an extreme of -40 degrees Celsius.
   温度达到了-40摄氏度的极端。
2. 2.The scientist found the solution to the problem at an extreme of simplicity.
   科学家在极其简单的情况下找到了解决问题的方法。
3. 3. The climber scaled the mountain at an extreme of peril.
   登山者冒着极大的危险攀登了这座山。