Students have a lot of trouble with the concepts because there is not much intuition about electromagnetic phenomenon.

学生们对于理解概念,觉得很困难,因为对于电磁学现象,只有很少能凭直觉理解的。

麻省理工公开课 - 媒体、教育、市场课程节选

Sometimes when I am traveling in America, people have a difficulty understanding me.

有时候，当我在美国旅游的时候，人们要理解我，会有一点困难。

有趣的澳大利亚英语 - SpeakingMax英语口语达人

If I can just have it there before me, that is a very difficult and derivative intellectual act, and it cannot be understood as primordial or primitive.

仅是面对着它，对于思维来说非常困难，并且这不能被理解为是原始的。

耶鲁公开课 - 文学理论导论课程节选

I have trouble understanding them

我有困难理解他们的课，

热情的教授 - SpeakingMax英语口语达人

We don't have an enormous difficulty grasping them, and it doesn't seem to me that our capability of grasping irony is founded on a necessary, underlying agreement.

我们在理解时不会用很大困难，而且我认为，我们理解讽刺的能力,是建立在必要的，潜在的共识之上的。

耶鲁公开课 - 文学理论导论课程节选