21. "Record companies have been a tough nut to crack , " said bass Barry Carl. 22. "It's a tough nut to crack as to what Haiti needs more of ." 23. That's one of the main reasons why this thing is such a tough nut to crack ." 24. With the Israelis and the Palestinians, well, that was always going to be a tough nut to crack . 25. But the local phone business is proving a tough nut to crack for even the largest and best financed cable companies. 26. That's a tough nut to crack for the likes of Red Bullet, Snuck In, and Hugh Hefner. 27. When Martin suggested then that TMS would be a tough nut to crack , turns out he was being politically correct. 28. Winning Laotian cooperation for the Vietnamese to visit the sites has been " a tough nut to crack ," 29. Pakistan enjoyed territorial supremacy throughout the match against Spain, but found Spanish goalkeeper Bernardino Herrera a tough nut to crack . 30. In the 20 years after their international debut in 1976, the Americans developed a cachet as tough nuts to crack .
