When things go wrong, all of us naturally feel disappointed and frustrated.

出问题时，我们自然而然都会觉得失望和沮丧。

《柯林斯英汉双解大词典》

We feel disappointed in ourselves and ashamed.

我们对自己感到失望和羞愧。

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They are normally serious about learning and feel disappointed with low grades on tests and exams.

他们通常对学习很认真，对考试得低分感到失望。

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Certainly, this is the case for the professionals who voted for the centre-right last year and now feel disappointed.

ECONOMIST: France

It's OK to feel disappointed, but Neva's not going to remember that you didn't make it to the parent-teacher conference.

WSJ: Being a Murphy Brown Working Mom in a June Cleaver Stay-at-Home World

"The team does a lot which puts a lot of pressure on because if you raise the money you feel disappointed for the people who have helped if you don't do well, " she said.

BBC: Women face anxious wait