She was very indignant at the way she had been treated.

她对自己受到的待遇大为光火。

《牛津词典》

He is indignant at suggestions that they were secret agents.

他对关于他们是特务的暗示很愤慨。

《柯林斯英汉双解大词典》

I was indignant at their mean actions.

我对他们的卑劣行径感到愤慨。

《新英汉大辞典》

So far we've looked at this game as played by people and we've looked at this game who are evil gits, as played by people who are indignant angels.

目前为止我们对这个博弈的分析,还停留在局中人都是饭桶恶魔,或者都是愤怒天使的阶段呢

耶鲁公开课 - 博弈论课程节选

Letters poured in by the thousand and almost all were indignant at the treatment of Mr Radulovich.

ECONOMIST: Milo Radulovich

He attempts to act out indignation, but he always seems indignant at only one thing: that he's being questioned at all.

WSJ: This Is No Ordinary Scandal

The duke's lawyer, Mario Pascual Vives, said his client was "worried, saddened and rather indignant at what is coming out in the media".

BBC: Spain duke Inaki Urdangarin suspended in fraud scandal