When the graduate job market is difficult, Wilkinson notes that more students see 'prolonged study as a constructive alternative to taking a low level job'.

The college has disclosed few details of the curricular overhaul, which will be a subject of prolonged study.

And you are right that no mere chance led me to my present condition, but, on the other hand, prolonged and deliberate study.

But Gregory needed thirty years and a bad slump into a prolonged brown study in order to remember himself.

Then he had begun his prolonged study of human emotion, with a view to establishing useful emotional associations in robots.

During his prolonged studies, Brona uncovered the deepest secrets of sorcery and mastered them.

Only after prolonged study would Russia agree to discuss it, he said.

Apart from the fascination of the designs themselves, the watercolor and ink rendering techniques invite prolonged study.

Evolutionary changes, however, are always at our doorstep, always available for detailed and prolonged study.

He turned his head, licked rapidly with his expert tongue, and gazed in deep, prolonged study at the priest.