It was not long before I realized the enormity of my faux pas.

没过多久我就发现了我有多么的失礼。

《柯林斯英汉双解大词典》

Hiring a PR firm can be well worth the expense, but even then a nasty faux pas can occur.

雇佣一所公共关系事务所物有所值，然而即使这样做了，也有可能出现严重的失言。

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What is the greatest fashion faux pas?

在时尚界，最丢脸的事是什么？

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An inspection report mentioned the faux pas at Lincoln Prison in a section on foreign prisoners.

BBC: Lincoln Prison handbook's 'execution' error spotted

But we rarely compound the faux pas by throwing religion into the mix as well.

BBC: Divine healing advertisement controversy

It was thus ironic that Benedict should have first run into trouble with the faux pas that his Islamic hosts were still worrying about this week.

ECONOMIST: Pope Benedict