She paid tribute to the UNFPA staff working in difficult and challenging circumstances.

After all, host countries have been able to contain nuclear risks in the most challenging circumstances.

In fact, it's all about frostbite and having difficulty walking, and difficulty breathing cold, challenging circumstances.

In fact, it's all about frostbite and difficulty to walk and difficulty of breathing cold, challenging circumstances.

Moreover, instructors will be able to program controlled scenarios to assess how a trainee copes in challenging circumstances.

Tremendously challenging.

At this sensitive political juncture, this is particularly relevant to the Iraqi security forces that are often required to operate in challenging and provocative circumstances.

Finally, I wish to pay tribute to all UNAMI staff for their hard work and dedication in implementing our mandate, often in exceptionally challenging circumstances.

Under these circumstances, the new Government has a challenging task to provide for safeguards and guarantees for human rights, based on the rule of law.

That was challenging.

Why so challenging?

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

He commended the leadership of the Secretary General and the High Commissioner and the dedication of their staff to their very challenging mission under increasingly dangerous circumstances.

Challenging gender based violence

Not a challenging task.

The African Union and the African Mission in the Sudan must be commended for their work in Darfur, carried out under increasingly challenging circumstances and with limited resources.

And this is a very challenging idea. It's a very challenging idea to mainstream media.

A bit more challenging, right?

So this is more challenging

Are you challenging my orders?

In conclusion, I would like to commend my Special Representative and all civilian and military staff of UNMIL for their contributions to the peace process in difficult and challenging circumstances.

A bit more challenging, right? (Laughter)

It's not very challenging any more.

And that's challenging because it's easy.

Your job needs to be challenging.

This is challenging work to do.

Something is very challenging to me.

I wish to commend them all for carrying out the mandate you have given us in circumstances that remain among the most challenging faced by any United Nations mission at this time.

But striking the proper balance is challenging.

That will be particularly challenging for Bernanke.

That is an assumption that needs challenging.

Emerging and challenging issues deriving from implementation

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

Skepticism, because you must always be challenging.

I'm challenging you to find you value

And people reinventing themselves in challenging times.

It's this immensely exciting and challenging problem.

Listen, I'll teach you a challenging trick.

They are challenging forces they cannot control.

Miss Templeton, please stop challenging your witness.

In conclusion, I would like to commend my Special Representative, Jacques Paul Klein and all civilian and military staff of UNMIL for their contributions to the peace process under difficult and challenging circumstances.

Since the adoption of resolution 1546 (2004) one year ago, the United Nations has been able, under uniquely challenging circumstances, to help Iraq meet each benchmark of its political transition process thus far.

We value the continued cooperation among the United Nations, the AU and the Economic Community of West African States (ECOWAS), as well as their contributions to advancing the peace process under these challenging circumstances.

Finally, Japan s external environment today is more challenging.

However, the situation in Cité Soleil remains challenging.