Cách sử dụng
The expression "on end" means doing something continuously for a long time without stopping. For example, you can say "I studied for three hours on end" which means you studied for three hours without taking any breaks. You can also use "on end" to describe something else that lasts for a long time, such as "The rain fell for days on end" which means it rained continuously for several days. It is a helpful expression to use when you want to emphasize that something lasted for a long time without stopping.