He was disappointed when he didn't get the promotion he had hoped for. 当他没有得到期望中的晋升时，他感到很失望。

The fans were disappointed that their favorite team lost the game. 粉丝们对他们最喜欢的球队输掉比赛感到失望。

She looked disappointed after reading the rejection letter from the university. 读完大学的拒信后，她看起来很失望。

I'm disappointed in myself for making such a silly mistake. 我因犯了这么愚蠢的错误而对自己感到失望。

They were disappointed with the quality of the product they bought. 他们对购买的产品质量感到失望。

The children were disappointed when it started to rain and they couldn't go to the park. 当开始下雨，孩子们不能去公园时，他们很失望。

My parents will be disappointed if I fail the exam. 如果我考试不及格，我的父母会失望的。

He showed a disappointed expression when he heard the bad news. 当他听到这个坏消息时，他露出了失望的表情。

She's disappointed that she missed the concert due to illness. 她因生病错过了音乐会而感到失望。

The customers were disappointed because the restaurant ran out of their favorite dish. 顾客们很失望，因为餐厅把他们最喜欢的菜卖光了。

I'm disappointed that you didn't keep your promise. 你没有遵守诺言，我很失望。

They seemed disappointed after the long and fruitless search. 经过长时间无果的寻找后，他们似乎很失望。

The coach was disappointed in the team's performance in the first half. 教练对球队上半场的表现感到失望。

She felt disappointed when her friends didn't show up for the party. 当她的朋友们没有来参加聚会时，她感到失望。

He was disappointed to find that the book he wanted was out of stock. 他失望地发现他想要的书缺货了。

The audience was disappointed by the boring movie. 观众对这部无聊的电影感到失望。

I'm disappointed with my progress in learning a new language. 我对自己学习一门新语言的进展感到失望。

They were disappointed that the hotel didn't meet their expectations. 酒店没有达到他们的期望，他们感到失望。

The students were disappointed when the teacher postponed the field trip. 当老师推迟实地考察时，学生们很失望。

She's disappointed that her plan didn't work out as she had hoped. 她的计划没有像她希望的那样成功，她感到失望。