Peter ought to be ashamed of himself.

彼得应为自己感到羞耻。

《牛津词典》

He knew full well he'd be ashamed of himself later.

他十分清楚他以后会为自己感到羞愧。

《柯林斯英汉双解大词典》

You should be ashamed of yourself for telling such lies.

你扯这种谎应该感到羞耻。

《牛津词典》

I'm ashamed to be your father. I'd have horsewhipped you if I had a horse.

VOA: special.2009.07.19

Because we can get inspirations from so many places, they come together to make us who we are, and not to be ashamed.

因为我们从各个地方汲取灵感，这些灵感融合在一起，就塑造了我们的人格，我们不应因此感到羞愧。

普林斯顿公开课 - 人性课程节选

? "But why should we be ashamed to praise injustice?"

但为何我们要因为赞美不公而感到羞愧“

耶鲁公开课 - 政治哲学导论课程节选

This controversy does expose some sketchy activity, but its politicians who should be ashamed, not Google.

FORBES: The IRS' Tax Rate On Google's Foreign-Source Income Is 2.4 Percentage Points Too High

Who did I know that I wouldn't be ashamed to ask for a loan?

WSJ: Julia Stiles on Being Broke and Stranded in Havana | Traveler's Tale

What is there to be ashamed of when you are trying to get better?

FORBES: On the Mend: Lessons From the Road to Recovery