延续他的工作艰苦而富有挑战性。

The task of succeeding him is difficult and challenging. But I will know how to honor his legacy.

富有挑战性。

Being challenging.

而一名旅行者则选择富有挑战的路线。

A traveler seeks out the challenging path.

有些运动富有挑战性，许多年轻人喜欢。

Some sports are challenging and many young men like them.

学习管理压力是一个富有挑战性的生活技能。

Learning to manage stress is a challenging life skill.

乘爱斯基摩划子富有挑战性, 有点令人害怕.

The kayaking is challenging, somewhat scary.

现在我们的对话与合作历经两个多世纪和富有挑战。

Our dialog and cooperation have now survived over two centuries and over considerable challenges.

所以我的提问接下来将变得更富有挑战性，也就是往矩阵的右上角发展。挑战性的提问能使听众进入思考。

So as you move through your presentation move towards the top-right corner and ask more challenging questions which will get your audience thinking.

背景: 对可疑冠状动脉疾病患者行无创性检查富有挑战性.

Background: Noninvasive testing for suspected coronary artery disease is challenging.

自然保护成为人类所面临的最重要也最富有挑战性的任务。

Nature conservation becomes a upmost important and quite challenging task.