极度疲劳

例句：

1. 1. He was extremely tired after a long day's work.
   他工作了一整天后感到非常疲惫。
2. 2. The marathon runner finished the race with extreme fatigue.
   马拉松跑者以极度疲惫结束了比赛。
3. 3. She felt extremely relieved after her exams were over.
   考试结束后，她感到非常轻松。