But the economics of nuclear power are thorny.

但是，核能的经济性问题十分棘手。

The coming use of autonomous vehicles, for example, poses thorny ethical questions.

最强力的一个例证就是即将投入使用的无人驾驶汽车。

King was a thorny, prophetic, demanding thinker.

金是一位富有争议、有先见之明、要求苛刻的思想家。

Then we discussed the word thorny.

然后我们讨论了棘手的这个词。

And being thorny still gets me in trouble.

你这带刺的态度还是会刺伤我。

And here we stray into the thorny territory of medical ethics.

由此我们进入了医学伦理学的棘手领域。

So, imagine thorny bushes being wrapped tightly, sounds painful, right?

想象一下，荆棘被紧紧地包裹起来，听起来很痛苦，对吧？

The state of Western Sahara is likely to remain a thorny issue.

西撒哈拉问题依然非常棘手。

The high court is left to deal with a thorny issue.

高等法院负责处理棘手问题。

At the same time, the policy addresses none of the truly thorny questions about homework.

同时，该政策没有处理家庭作业真正棘手的问题。