不满地

例句：

1. 1. I was disappointed when I found out that my exam results were not good.
   我失望地发现我的考试成绩不好。
2. 2.The news of the new product launch disappointed many customers.
   新产品发布会的消息让许多顾客感到失望。
3. 3.She felt disappointed when she realized that her plan had failed.
   当她意识到她的计划失败了时，她感到失望。