We'll get into some spots where it gets a little trickier, a little bit more complicated later in class.

我们接下来在课堂上,会做一些更棘手，更复杂的问题。

麻省理工公开课 - 化学原理课程节选

There are widespread controversies about it, and many of the courses you would take in law school are meant to try to get to the bottom of these thorny questions.

这个问题有很多争议，法学院的很多课都旨在,把这些棘手的问题弄得水落石出。

耶鲁公开课 - 文学理论导论课程节选

So that you will come away with a sense of what you can do, what you can't do, and what kinds of things you should use to tackle complex problems.

因此你们才能对,你们能做的事儿，不能做的事儿,和用何方法去,解决棘手问题有一个基本概念。

麻省理工公开课 - 计算机科学及编程导论课程节选

That really is the question we are wrestling with and, of course, behind it all is can we seek any historical information from Homer's poems at all?

这确实是一个很棘手的问题,不管怎样,我们是否能从荷马史诗中,得出当时的史实呢

耶鲁公开课 - 古希腊历史简介课程节选