But for people who have a difficult time controlling their movements, this little navigational issue can be a really big problem.

VOA: special.2011.04.18

But then also a little bit about your history, where you come from, some of your experiences which have helped you or informed your opinions on this very difficult issue that the entire world really is spending a lot of time trying to work on.

然后再谈谈你们各自的经历，你们从何而来，谈一些你们自己的经历,一些帮助过你们，或形成了你们,就这个复杂问题的观点,这个全世界都在投入大量时间试图解决的问题。

普林斯顿公开课 - 人性课程节选

And one reason Bowman believes this is that we have such a difficult time in understanding other peoples and other cultures is that the very idea of defending one's honor has largely been devalued in the modern west.

鲍曼给出了一个理由,正是因为西方社会中,对维护荣誉的观念早已淡化,才导致他们对其他社会群体,和特定文化的不理解。

耶鲁公开课 - 政治哲学导论课程节选

But small farmers often have a difficult time getting their animals to market.

VOA: special.2010.08.03