Sentence examples similar to it presented a difficult requirement from inspiring English sources
And it presents a more difficult challenge than the one faced by the 60's generation.
Together, it presents an exceptionally difficult challenge.
Numerical simulations of the four-field extended magnetohydrodynamics (MHD) equations with hyper-resistivity terms present a difficult challenge because of demanding spatial resolution requirements.
But China presents a difficult policy puzzle.
The sacral region presents a difficult case.
"It presents an opportunity for competitive advantage, because it's so difficult," he says.
"It presented us with a difficult decision," said John Schaefer, the station's music director.
Orchids present a more difficult and specialized subject for successful home cultivation, usually because of their requirements for light, controlled temperature, and sufficient humidity and ventilation.
"It is a difficult area when you come to present the stuff," agrees Cocker.
