Selvakumar could it be that "By the end of" connotes "the presentation needn't have ended" whereas "At the end of" means "when the presentation comes to its end"? Yes. " You will be able to understand the difference between x and y sometime before and up to the end of the presentation.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Selvakumarcould it be that "By the end of" connotes "the presentation needn't have ended" whereas "At the end of" means "when the presentation comes to its end"?Yes.