The study reveals that modern day parents are increasingly turning to the Internet to answer difficult questions from their children -56 per cent said they use the web.

研究表明现代越来越多的父母通过上网来解决他们孩子提出的难题——有56%的父母如是说。

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Tolstoy spent his whole life trying to answer these difficult questions.

托尔斯泰一生都在试图回答这些难题。

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Even the most difficult questions, the old woman was able to answer them.

即使是最难的问题，这位老妇人也能回答出来。

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Professor Yoshino explains. "Shakespeare calls this a problem of ocular proof, the idea that we need to see evidence before we believe in it -- and that,oftentimes, when metaphysical questions of guilt or innocence are difficult for us to answer, we have a tendency to reduce them to questions that pertain to physical evidence.

VOA: special.2011.06.06

So that's really - these are really difficult questions to answer.

所以这些问题,这些问题都是极难处理的

耶鲁公开课 - 生物医学工程探索课程节选

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

Pecora brought some of the most prominent figures from Wall Street to speak with the commission and to answer difficult questions.

CNN: Commentary: Investigate Wall Street

Only last month Ms Griffiths had to answer some difficult questions about the policy when she came before Mr Drakeford's health committee.

BBC: What's in store for new Health Minister Mark Drakeford?

It broke the tension for a while, but did nothing to dispel the impression this was a press conference with someone determined not to answer the difficult questions.

BBC: Blair ducks the hard questions