from the beginning to the end of an activity, a situation or a period of time
از آغاز تا پایان, از ابتدا تا انتها, در تمام مدت, طی, در طول, از سر تا ته, تمام مدت, سراسر
The children are too young to sit through a concert.
He will not live through the night.
I'm halfway through her second novel.