disappointed　失望的disappointed 失望的失望的，沮丧的disappointed adj. 失望的，沮丧的disappointment n. 失望，沮丧disappointing 令人失望的disappointed 感到失望的We were disappointed.我们失望了。

He was disappointed at the result.他对这样的结果感到失望。

I was completely disappointed to hear that.听到那个消息后我彻底失望了。

We were disappointed that they could not learn the lesson of history.他们没能吸取历史的教训, 使我们感到很失望。