fatigue threshold

例句：

1. 1. The fatigue threshold for this task is very low.
   这项任务的疲劳阈值非常低。
2. 2. The athletes need to push themselves beyond their fatigue threshold.
   运动员需要超越自己的疲劳极限。
3. 3. The research team found that the fatigue threshold for endurance exercise was significantly higher than previously thought.
   研究团队发现，耐力运动的疲劳阈值比之前认为的要高得多。