intractable problem造句

We are facing an intractable problem.

The better I get at filtering and managing my email, the more convinced I am that email overload may be an intractable problem.

First, better institutions will not solve intractable problems.

To talk about a water crisis hides intractable problems such as poverty.

Because it is practice. It is learning in avirtual world the types of skills and behaviors we need to solve theseemingly intractable problems of the real world.

But now Nigerians are waiting for him to take the harder decisions that alone may sort out some of their country's more intractable problems.

Worse, their intractable problems—left for generations by the countries where they sought shelter in wretched camps-cum-shanty towns—seem now to be typical of other refugees’ woes.