1. We are facing an intractable problem.

2. Unemployment was proving to be an intractable problem.

3. Do not concern yourself with this seemingly intractable problem.

4. It has been and remains the most intractable problem of world diplomacy.

5. It should be one which presents a seemingly intractable problem.

6. It was a breathtakingly audacious solution to an intractable problem, and the results were to be breathtaking as well.

7. But the most intractable problem in Baia Mare is not smoke but dust.

7. try its best to collect and build good sentences.

8. The most intractable problem of glioma is tumor recurrence after operation.

9. The most intractable problem is that there are never enough skilled or promising people to go around.

10. In software, an intractable problem can usually be replaced by an equivalent one that's easy to solve.

11. In 1977, to cover every intractable problem with excuses for complacent resignation.

12. MRSA has proved to be an intractable problem in hospitals, despite repeated government initiatives – concentrating on improved staff hygiene and deep-cleaning programmes – to eradicate it.

13. The dating of planation surface is still an intractable problem.

14. Deficit – Growing and possibly intractable problem for the economies of the developed world.

15. The most intractable problem is the selecting of the address of enterprise.

16. An intractable problem for the concept of " synonymy " is that, we should assume different speakers take the same way to partition the World, when we assert different expressions are synonymy .

17. Although here, too, Chicago had fared better than many older cities, unemployment remained a serious, seemingly intractable problem.

18. However, behind the tendencies we have charted lurks a more intractable problem, that of curriculum expertise.

19. But remember: you have to believe that the seemingly intractable problem can be cracked.

20. Only if the government will take some appropriate measures, will this intractable problem be tackled.

21. Data persistent is an important part of development in J2EE, and is an intractable problem in the process of designing enterprise application system.

22. Chaos-based encryption has suggested a new and efficient way to deal with the intractable problem of fast and highly secure image encryption.

23. In complicated electromagnetic environments, the effectiveness evaluation of the radar confronting deception jamming is a very important and intractable problem.

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

25. During maintaining the materialized view in the data warehouse, how to efficiently handle the concurrent updates is an important and intractable problem.

26. The safety of this scheme is based on the intractable problem of solving Discrete Logarithm.

27. However recently, there are too many athletes taking prohibited medicine, which becomes a big and intractable problem in international sports field.

28. Worse than this, discovering the direction of bias may be an intractable problem.

29. Eg: Only if the government will take some appropriate measures, will this intractable problem be tackled.