أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
listen more after finish class ask
I guess both may be good but definitely have different approaches of building knowledge. However, sometimes it is in the interest of the whole class for questions to be postponed till the end
Listen carefully and ask doubts after the listen its better than ask doubts in between class.