He says those questions became even more difficult to answer after the 9/11 attacks by a group of Sunni Arab terrorists that killed 3,000 people on American soil, and after the massive U.S.military deployments in Afghanistan and Iraq.

VOA: standard.2010.03.18

These are the questions that are asked by what's called hermeneutics, a difficult word that we will be taking up next week.

这些是所谓诠释学提出的问题，诠释学是个难词，我们下周再讨论。

耶鲁公开课 - 文学理论导论课程节选

Especially if you're asking difficult questions, use the "Would you" pattern.

特别是当你提出很困难的问题时，应使用“Would you”句型。

Would you 课堂 - SpeakingMax英语口语达人

Freud's--Freud was very focused on the family life of the people he interacted with, which is rather upper class Europeans, and these sort of questions would have been difficult for Freud to answer.

弗洛伊德非常关注,与他接触之人的家庭生活，也就是一些欧洲的贵族们，对于这类问题,相信弗洛伊德本人也很难作答。

耶鲁公开课 - 心理学导论课程节选