تَدَارَسُوا الكِتَابَ حَتَّى حَفِظُوهُ
1.
(tropical:) [They read the book, or read it repeatedly, or studied it, or read and learned it, together, teaching one another, until they retained it in memory]. (A.)
2.
تَدَارَسْتُ الكُتُبَ, and اِدَّارَسْتُهَا, and تَدَارَسَ القُرْانَ: see دَرَسَ الكِتَابَ.