当电脑再次崩溃时，你能看到她脸上的沮丧。

You could see the ___frustration on her face as the computer crashed again.

经过数小时的练习，当他仍然无法掌握这项技能时，他的挫败感显而易见。

After hours of practice, his ___frustration was obvious when he still couldn't master the skill.

项目的不断延期导致团队成员中日益增长的沮丧情绪。

The constant delays in the project caused growing ___frustration among the team members.