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

由此我们进入了医学伦理学棘手领域。

But the economics of nuclear power are thorny.

但是，核能经济性问题十分棘手。

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

最强力个例证就是即将投入使用无人驾驶汽车。

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问题。

And being thorny still gets me in trouble.

你这带刺态度还是会刺伤我。

Our country has braved thorny paths and confronted stormy weather over the past seventy years.

70年披荆斩棘，70年雨兼程。

On the way home, he had to ride through a thorny black wood.

在回家路上，他要骑马穿过片荆棘遍暗丛林。

AI could, they claim, help humanity solve some of its biggest and thorniest problems.

他们声称，人工智能可以帮助人类解决些最大、最棘手问题。

King was a thorny, prophetic, demanding thinker.

金是位富有争议、有先见之明、要求苛刻思想家。

They divert moisture from the driest, hottest badlands and carry rainfall to thorny jungles.

它们将水分从最干燥、最热荒转移并以降雨形式带到丛林中。

Whether A.I. can ever truly be creative is a thorny subject.

人工智能是否能真正具有创造性是个棘手问题。

On the agenda is trade but also the thorny problem of North Korea's nuclear ambitions.

此行议程是贸易，以及朝鲜核威胁棘手问题。

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

西撒哈拉问题依然非常棘手。

But what to do with him has been one of the most thorny issues.

但如何处置他直是最棘手问题之。

In the drier parts of the island, the phasmids have adapted to the thorny vegetation.

在岛上较为干爽方，有些竹节虫已经适应了多刺植物。

To deter these animals, thorny poisonous mathenge trees were planted to serve as walls.

为了阻止这些动物，学校种植了带刺有毒马蹄铁树，作为围墙。

This might help to disguise some of the consumer bank's thorniest problems.

这可能有助于掩盖其消费者银行部门中最棘手些问题。

And then she found the yellow hat on the thorny herbs.

然后她在带刺草上找到了黄色帽子。

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

想象下，荆棘被紧紧包裹起来，听起来很痛苦，对吧？

She charges between 10pennies for advice on little, everyday worries and 1 pound for thornier problems.

咨询费用不等，咨询生活琐事需10便士，咨询棘手问题需1英镑。