I understand it seems to make a correlation between a group of individuals and another distinct argument to lessen ambiguity:
Minden gyerek olvasott egy könyvet = every child read a book (ambiguous, either there was one book that all the children read or each of them read their own)
Minden gyerek olvasott egy-egy könyvet = every child read a book (non ambiguous, correlates a single book for every child)
Its grammatical to say:
A lányok olvastak egy könyvet = The girls read a book (ambiguous)
But is it possible to say(and this is my question):
A lányok olvastak egy-egy könyvet = The girls read a book (non ambiguous)
Thanks for anyone who can shed light on this unusual determiner...