American sanctions and internal politicking mean that Iran has trouble maintaining current levels.
"To the extent he has trouble maintaining that image could give him trouble with moderate swing voters".
Likewise, Europe and Canada have both done an excellent job of building networks of long-distance hiking trails, while the U.S. has trouble maintaining the trails it has.
That section, too, has a nice flow, but Ms. Johnson has trouble maintaining her choreographic rigor, and the program, held together more by personalities than by form, starts to fall short.
The rush stems from an official desire to start deep-water production before the end of Mr Calderón's term in 2012, reckons David Shields, an energy consultant.Pemex has trouble maintaining its existing installations.
She is perhaps best known to one generation of fans at least as M'Lynn, the steeliest of the "Steel Magnolias," another woman prone to anger and frustration at the things she cannot change, and who has trouble maintaining proper appearances in grief.
