I must relearn a soldier's drill in the manual and in everything.
One lesson he had learned, which he never needed to relearn.
One human lifetime is too infinitesimally small to relearn procedures that have taken aeons to develop.
This reform of the Alphabet would oblige people to relearn the language, or it could not be introduced.
He measured the loss by the number of seconds required to relearn the list after it had been once learned.
“Pray Heaven you never have to relearn it,” said I, groaning inwardly to think how near I had been to giving her cause.
If, on the contrary, it took you just as long now to relearn as it did originally to learn, the retention would be zero.
No one is too old, no one is too fixed in the bad habit to relearn the old trick.