They tried to catch her out with a difficult question.

他们试图用一道难题难倒她。

《牛津词典》

It was rather a difficult question.

这真是个难题。

《牛津词典》

He embarrassed me with a difficult question.

他用难题来窘我。

《新英汉大辞典》

Now, that's actually a difficult question to ask-- to answer for a child, but I tried my best to give him an answer.

向一个孩子解释这个问题其实挺困难的，但我还是尽力给了他一个答案。

耶鲁公开课 - 心理学导论课程节选

Perhaps, there is a difficult question that you want to ask somebody.

假如你有一个比较困难的问题想询问其他人。

I want to 课堂 - SpeakingMax英语口语达人

But before we dismiss Aristotle's account as insufferably inegalitarian and elitist, we have to ask a difficult question, not just of Aristotle, but more importantly of ourselves.

但在我们驳斥亚里士多德的论点之前,即令人无法忍受的不平等及精英者论点，我们必需要问一个艰难的问题，不只是关于亚里士多德，对我们更是重要。

耶鲁公开课 - 政治哲学导论课程节选

Joe the Plumber made headlines during the 2008 presidential campaign by asking then-candidate Obama a difficult question.

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And I just wonder, what's your sense of how - you know, I know it's a difficult question.

NPR: The Missing Women Were Seemingly In Plain Sight

As every good coach knows, when you ask a difficult question, people get no rest until it's answered.

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