1. The futility of trying to change his mind was evident as he remained steadfast in his decision.
他固执地坚持自己的决定，试图改变他的想法是徒劳的。

2. The futility of their efforts became apparent when they realized the project was doomed from the start.
当他们意识到这个项目从一开始就注定要失败时，他们的努力变得毫无意义。

3. She felt a sense of futility as she struggled to make sense of the complicated instructions.
在努力理解复杂的说明书时，她感到一种无助的感觉。

4. The futility of arguing with him became clear as he refused to listen to reason.
当他拒绝理性时，和他争论显然是没有意义的。

5. Despite their best efforts, the team could not overcome the futility of their situation.
尽管他们尽力，但困境的无助感仍然挥之不去。

6. The futility of their protests was evident as the decision had already been made.
由于决定已经做出，他们的抗议显然是徒劳的。