The Organization could only perform the increasingly challenging tasks before it when Member States accepted the responsibility to pay their contributions in full, on time and without conditions.

A bit more challenging, right?

The economic development plan was unveiled at a time when Malaysia was starting to recover from the Asian financial crisis and challenging economic conditions as a result of high oil prices.

However, when reproductive costs and extreme seasonality of resources were compared across primates, other primates demonstrated male dominance under conditions that were similar to or more challenging than those faced by lemurs.

A bit more challenging, right? (Laughter)

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

Finally, Japan s external environment today is more challenging.

However, the situation in Cité Soleil remains challenging.

Two serious problems make reconciliation in Afghanistan particularly challenging.

But success in Cairo might prove even more challenging.

This means that Europe probably faces another challenging year.

The selection of indicators has proven to be challenging.

Women challenging these norms are punished by violent means.

Emerging and challenging issues deriving from implementation and necessary

The year ahead will be challenging and rife with uncertainty.

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

You can see the trapezoids are a little challenging there.

Fortunately, such a way immensely challenging but nonetheless feasible exists.

This category is especially useful for solving especially challenging problems.

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.

America, however, is not alone in challenging Al Jazeera head on.

Aside from clarity, it is important that group goals be challenging.

The Second Great Awakening was challenging women's traditional roles in religion.

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

Some individuals and entities have filed multiple lawsuits challenging their listing.

Some local journalists and civil society groups are challenging the credibility of some of the results, and the CPC is challenging the outcome of the presidential vote at the INEC.

Opposition leaders do not like the subject, but they avoid challenging it.

Most should be able to grow strongly, despite the challenging global environment.

Of these three imperatives, sustainability may be the most complex and challenging.

It will be challenging, but maybe also healthy for our common future.

The journey from 2011 to now has been challenging, exciting and tedious.

Managing such a large and complex peacekeeping mission was a challenging task.

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.

The Perpetuity Growth Model has several inherent characteristics that make it intellectually challenging.

Trafficking within countries had become commonplace, challenging the usual definition of the phenomenon.

Tired diplomatic postures and ritual incantations are not what these challenging times demand.

In 2004, UNHCR maintained financial stability, although it was another challenging financial year.

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 embrace the challenging task of energizing the work of the First Committee.