You know the uni is the most challenging, so number ten is challenging.

This is challenging work to do.

That is an assumption that needs challenging.

In Japan, they say that sushi is challenging.

BC EDL is this immense, technically challenging problem.

But deciphering the script is a very challenging task.

That was challenging.

Determining an optimal level of accountability for results is also challenging.

At the best of times, traveling between Indonesia's many islands is challenging.

In fact, it is a challenging concept for both developed and developing countries.

Collating, presenting and marketing tourism information is a challenging task for developing countries.

You know, I can't decipher is it fun? Is it challenging? Am I supposed to cheat?

What is so difficult and challenging is that we are also the objects of these changes.

It's not very challenging any more.

The other thing which was so challenging about this swim is not just the altitude.

Because to find a place like this today on Earth is really very, very challenging.

Skepticism, because you must always be challenging.

DM She's very tough it's most challenging.

It's this immensely exciting and challenging problem.

And this is a very challenging idea. It's a very challenging idea to mainstream media. It's a very challenging idea to anyone who has invested an enormous amount of time and expertise, and who has a lot of energy invested in the notion that he or she knows better than everyone else.

This is really a business venture, one that addresses a very challenging segment of the market.

However, the situation in Cité Soleil remains challenging.

Coordination and cooperation will be needed even more in the challenging transition period once disengagement is complete.

Sustained economic growth is likely to become increasingly challenging, as donor aid for post conflict needs is being gradually phased out.

It's going to be very challenging to deal with.

The selection of indicators has proven to be challenging.

Women challenging these norms are punished by violent means.

The accomplishment of civic virtue is tied to the uses of intellect and imagination at their most challenging.

So, in a sense, the 18 minutes is challenging me to say, In life, this is what's important in terms of compassion.

Effective implementation of such commitments is indeed a complex and challenging task, which requires political will and adequate resources.

So this is more challenging large organ, vascular, a lot of blood vessel supply, a lot of cells present.

Beyond coordination, the requirement to build sustainable capacity is one of the most significant issues challenging technical cooperation activities.

We live in difficult and challenging economic times, of course.

They're challenging the very notion of Western models of development.

It's a very challenging task. But more to come later.

You can see the trapezoids are a little challenging there.

And we as Africans need to start challenging our leaders.

Everything we do, we believe in challenging the status quo.

We express our gratitude for Mr Smith's outstanding, challenging speech.

In this challenging environment, administrative infrastructures have continued to function.

This has been particularly challenging in remote and insecure areas.

These have indeed been very challenging times for our Organization.

Those measures might not meet everyone's expectations, but they reflect a degree of consensus that is both challenging and inspiring.

Indeed, we live in both challenging as well as exciting times.

And there were two types of laws that were particularly challenging.