dejecta

例句：

1. 1. She was so disappointed when she found out her exam results were not good.
   她发现考试成绩不好时非常失望。
2. 2.The team's performance was disappointing, and they knew they had to work harder.
   团队的表现令人失望，他们知道必须更加努力。
3. 3.The disappointment of the failure made him feel down for days.
   失败的失望让他几天都感到沮丧。