The researchers said they had no difficulty gaining cooperation with the treatment, even with infants.
The iPhone is going to have difficulty gaining significant market share at a $500 price point.
The beat of the eagle's wings was slow, and he seemed to have difficulty gaining height.
A parent may have similar difficulty gaining access to case conference minutes.
A dry man, he often has difficulty gaining respect in China.
He had no difficulty gaining access; Maclennan had been true to his word.
Garbage collectors have difficulty gaining access to the accumulating debris.
During the war years, the men had difficulty gaining deserved official recognition for achievement and valor.
In the 1950s and 60s, women artists in Vancouver had particular difficulty gaining recognition.
Both characters had difficulty gaining a following during this period of cast instability.